Biggest changeResults of Operations The following table summarizes our historical consolidated statements of operations (in thousands, except percentage of total net revenues): Years Ended December 31, 2022 2021 Net revenues $ 766,897 100 % $ 776,265 100 % Cost of revenues (1) 197,396 26 254,904 33 Gross profit 569,501 74 521,361 67 Operating expenses: Research and development (1) 196,637 26 178,821 23 Sales and marketing (1) 147,660 19 105,414 14 General and administrative (1) 216,247 28 159,019 20 Total operating expenses 560,544 73 443,254 57 Income from operations 8,957 1 78,107 10 Total interest expense, net and other income (expense), net 94,989 13 (72,368) (9) Income before benefit from (provision for) income taxes 103,946 14 5,739 1 Benefit from (provision for) income taxes 162,692 21 (7,197) (1) Net income (loss) $ 266,638 35 % $ (1,458) 0 % (1) Includes share-based compensation expense as follows: Cost of revenues $ 2,484 $ 1,621 Research and development 41,335 37,131 Sales and marketing 13,857 13,887 General and administrative 75,780 56,207 Total share-based compensation expense $ 133,456 $ 108,846 41 Table of Contents Years Ended December 31, 2022, 2021 and 2020 Net Revenues The following table sets forth our total net revenues for the periods shown for our Subscription Services and Skills and Other product lines (in thousands, except percentages): Years Ended December 31, Change in 2022 Change in 2021 2022 2021 2020 $ % $ % Subscription Services $ 671,968 $ 616,817 $ 460,612 $ 55,151 9 % $ 156,205 34 % Skills and Other 94,929 159,448 183,726 (64,519) (40) (24,278) (13) Total net revenues $ 766,897 $ 776,265 $ 644,338 $ (9,368) (1) $ 131,927 20 Subscription Services revenues increased by $55.2 million, or 9%, during the year ended December 31, 2022, compared to the same period in 2021.
Biggest change(Provision For) Benefit From Income Taxes (Provision for) benefit from income taxes consists primarily of federal and state income taxes in the United States. 41 Table of Contents Results of Operations The following table presents our historical consolidated statements of operations (in thousands, except percentage of total net revenues): Years Ended December 31, 2023 2022 Net revenues $ 716,295 100 % $ 766,897 100 % Cost of revenues (1) 225,941 32 197,396 26 Gross profit 490,354 68 569,501 74 Operating expenses: Research and development (1) 191,705 27 196,637 26 Sales and marketing (1) 126,591 18 147,660 19 General and administrative (1) 239,783 33 216,247 28 Total operating expenses 558,079 78 560,544 73 (Loss) income from operations (67,725) (10) 8,957 1 Total interest expense, net and other income (expense), net 118,037 17 94,989 13 Income before (provision for) benefit from income taxes 50,312 7 103,946 14 (Provision for) benefit from income taxes (32,132) (4) 162,692 21 Net income $ 18,180 3 % $ 266,638 35 % (1) Includes share-based compensation expense as follows: Cost of revenues $ 2,256 $ 2,484 Research and development 44,103 41,335 Sales and marketing 9,524 13,857 General and administrative 77,619 75,780 Total share-based compensation expense $ 133,502 $ 133,456 42 Table of Contents Years Ended December 31, 2023 and 2022 Net Revenues The following table presents our total net revenues for the periods shown for our Subscription Services and Skills and Other product lines (in thousands, except percentages): Years Ended December 31, Change in 2023 2023 2022 $ % Subscription Services $ 640,520 $ 671,968 $ (31,448) (5) % Skills and Other 75,775 94,929 (19,154) (20) Total net revenues $ 716,295 $ 766,897 $ (50,602) (7) Subscription Services revenues decreased by $31.4 million, or 5%, during the year ended December 31, 2023, compared to the same period in 2022.
See Note 11, “Convertible Senior Notes,” of our accompanying Notes to Consolidated Financial Statements included in Part II, Item 8, “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for additional information on the gain on early extinguishment of a portion of the 2026 notes and 2025 notes.
See Note 8, “Convertible Senior Notes,” of our accompanying Notes to Consolidated Financial Statements included in Part II, Item 8, “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for additional information on the gain on early extinguishment of a portion of the 2026 notes and 2025 notes.
Our marketing expenses are largely variable and to the extent there is increased or decreased competition for these traffic sources, or to the extent our mix of these channels shifts, we could see a corresponding change in our sales and marketing expenses.
Our marketing expenses are largely variable and to the extent there is increased or decreased competition for these traffic sources, or to the extent our mix of these channels' shifts, we could see a corresponding change in our sales and marketing expenses.
We intend to continue making significant investments in developing new products and services and enhancing the functionality of existing products and services. Sales and Marketing Our sales and marketing expenses consist of user and advertiser-facing marketing and promotional expenditures through a number of targeted online marketing channels, sponsored search, display advertising, email marketing campaigns, and other initiatives.
We intend to continue making significant investments in developing new products and services and enhancing the functionality of existing products and services. Sales and Marketing Our sales and marketing expenses consist of user and advertiser-facing marketing and promotional expenditures through a number of targeted online marketing channels, sponsored search, display advertising, social media campaigns, and other initiatives.
Recent Accounting Pronouncements For relevant recent accounting pronouncements, see Note 2, “Significant Accounting Policies”, of our accompanying Notes to Consolidated Financial Statements included in Part II, Item 8, “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.
Recent Accounting Pronouncements For relevant recent accounting pronouncements, see Note 2, “Significant Accounting Policies”, of our accompanying Notes to Consolidated Financial Statements included in Part II, Item 8, “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K. 49 Table of Contents
In assessing the need for a valuation allowance, we consider all available evidence including future reversals of existing taxable temporary differences, projected future taxable income, taxable income in prior carryback years if permitted 48 Table of Contents under the tax law, and tax-planning strategies.
In assessing the need for a valuation allowance, we consider all available evidence including future reversals of existing taxable temporary differences, projected future taxable income, taxable income in prior carryback years if permitted under the tax law, and tax-planning strategies.
Research and Development Our research and development expenses consist of salaries, benefits, and share-based compensation expense for employees on our product, engineering, and technical teams who are responsible for maintaining our website, developing new products, and improving existing products. Research and development costs also include technology costs to support our research and development, and outside services.
Research and Development Our research and development expenses consist of employee-related expenses, which includes salaries, benefits, and share-based compensation expense for employees on our product, engineering, and technical teams who are responsible for maintaining our website, developing new products, and improving existing products. Research and development costs also include technology costs to support our research and development, and outside services.
Quarterly changes in the estimated forfeiture rate can have a significant impact on our share-based compensation expense as the cumulative effect of adjusting the rate is recognized in the period the forfeiture estimate is changed.
Quarterly changes in the estimated forfeiture rate can have a significant impact on our share-based compensation expense as the cumulative effect of adjusting the rate is 48 Table of Contents recognized in the period the forfeiture estimate is changed.
Our future capital requirements will depend on many factors, including our rate of revenue growth, our investments in research and development activities, our acquisition of new products and services and our sales and marketing activities.
Our future capital requirements will depend on many factors, including our rate of revenue growth, our investments in research and development activities, our 45 Table of Contents acquisition of new products and services and our sales and marketing activities.
We estimate a forfeiture rate to calculate the share-based compensation expense related to our awards. Estimated forfeitures are determined based on historical data and management’s expectation of exercise behaviors. We continue to evaluate the appropriateness of the forfeiture rate based on actual forfeiture experience, analysis of employee turnover and other factors.
We estimate a forfeiture rate to calculate the share-based compensation expense related to our awards. Estimated forfeitures are determined based on historical data and we continue to evaluate the appropriateness of the forfeiture rate based on actual forfeiture experience, analysis of employee turnover and other factors.
In June 2022, our board of directors approved a $1.0 billion increase to our existing securities repurchase program authorizing the repurchase of up to $2.0 billion of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements.
In August 2023, our Board of Directors approved a $200.0 million increase to our existing securities repurchase program authorizing the repurchase of up to $2.2 billion of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements.
We have determined these performance obligations qualify as distinct performance obligations, as the customer can benefit from the service on its own or together with other resources that are readily available to the customer, and our promise to transfer the service is separately identifiable from other promises in the contract.
Some of our customer arrangements include multiple performance obligations. We have determined these performance obligations qualify as distinct performance obligations, as the customer can benefit from the service on its own or together with other resources that are readily available to the customer, and our promise to transfer the service is separately identifiable from other promises in the contract.
Aside from our discussion on net revenues, we have omitted discussion of the earliest of the three years of financial condition and results of operations and this information can be found in Part I, Item 7, “Management's Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the SEC on February 22, 2022, which is available free of charge on the SEC's website at sec.gov and on our website at investor.chegg.com.
We have omitted discussion of the earliest of the three years of financial condition and results of operations and this information can be found in Part I, Item 7, “Management's Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the SEC on February 21, 2023, which is available free of charge on the SEC's website at sec.gov and on our website at investor.chegg.com.
We incur salaries, benefits and share-based compensation expenses for our employees engaged in marketing, business development and sales and sales support functions, and amortization of acquired intangible assets.
We incur employee-related expenses, which includes salaries, benefits and share-based compensation expenses for our employees engaged in marketing, business development and sales and sales support functions, and amortization of acquired intangible assets.
These estimates form the basis for judgments we make about the carrying values of our assets and liabilities, which are not readily 46 Table of Contents apparent from other sources. We base our estimates and judgments on historical experience and on various other assumptions that we believe are reasonable under the circumstances.
These estimates form the basis for judgments we make about the carrying values of our assets and liabilities, which are not readily apparent from other sources. We base our estimates and judgments on historical experience and on various other assumptions that we believe are reasonable under the circumstances. On an ongoing basis, we evaluate our estimates and assumptions.
If our estimates or related 47 Table of Contents assumptions change in the future, we may be required to impair these assets. We did not record any impairment charges related to acquired intangible assets or other long-lived assets during the years ended December 31, 2022 and 2021.
If our estimates or related assumptions change in the future, we may be required to impair these assets. We did not record any impairment charges related to acquired intangible assets or other long-lived assets during the years ended December 31, 2023 and 2022.
To the extent that existing cash and cash from operations are insufficient to fund our future activities, we may need to raise additional funds through public or private equity or debt financing. Additional funds may not be available on terms favorable to us or at all.
To the extent that existing sources of liquidity are insufficient to fund our future operations, we may need to raise additional funds through public or private equity or debt financing. Additional funds may not be available on terms favorable to us or at all.
If adequate funds are not available on acceptable terms, or at all, we may be unable to adequately fund our business plans and it could have a negative effect on our business, operating cash flows and financial condition. Most of our cash, cash equivalents, and investments are held in the United States.
If adequate funds are not available on acceptable terms, or at all, we may be unable to adequately fund our business plans and it could have a negative effect on our business, operating cash flows and financial condition.
As of December 31, 2022, $642.6 million remaining under the repurchase program, which has no expiration date and will continue until otherwise suspended, terminated or modified at any time for any reason by our board of directors.
As of December 31, 2023, we had $3.7 million remaining under the securities repurchase program, which has no expiration date and will continue until otherwise suspended, terminated or modified at any time for any reason by our board of directors.
In determining this estimate, we consider the single most likely amount in a range of possible amounts. This estimated amount of variable consideration requires management to make a judgment based on the forecasted amount of consideration that we expect we will earn as well as the time period in which we can reasonably rely on the accuracy of the forecast.
This estimated amount of variable consideration requires management to make a judgment based on the forecasted amount of consideration that we expect we will earn as well as the time period in which we can reasonably rely on the accuracy of the forecast.
See Note 17, “Income Taxes,” of our accompanying Notes to Consolidated Financial Statements included in Part II, Item 8, “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for additional information.
See Note 8, “Convertible Senior Notes” of our accompanying Notes to Consolidated Financial Statements included in Part I, Item 8, “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for additional information on our notes.
Other income (expense), net consists primarily of interest income, gains/losses on early extinguishment of the convertible senior notes, foreign currency gain on purchase consideration, realized gains/losses on the sale of our investments, loss on the change in fair value of derivative instruments and gains on the sale of our strategic equity investments.
Other income (expense), net consists primarily of interest income, gains on early extinguishment of the convertible senior notes, realized gains/losses on the sale of our investments, and foreign currency gain on purchase consideration.
Sales and marketing expenses as a percentage of net revenues were 19% during the year ended December 31, 2022 compared to 14% of net revenues during the same period in 2021. General and Administrative General and administrative expenses in the year ended December 31, 2022 increased by $57.2 million, or 36%, compared to the same period in 2021.
Sales and marketing expenses as a percentage of net revenues were 18% during the year ended December 31, 2023 compared to 19% of net revenues during the same period in 2022. General and Administrative General and administrative expenses in the year ended December 31, 2023 increased by $23.5 million, or 11%, compared to the same period in 2022.
We expense substantially all of our research and development expenses as they are incurred. In the past three years, our research and development expenses have increased to support new products and services as well as to expand our infrastructure capabilities to support back-end processes associated with our revenue transactions and internal systems.
We expense substantially all of our research and development expenses as they are incurred. Our research and development expenses continue to support new products and services as well as expand our infrastructure capabilities to support back-end processes associated with our 40 Table of Contents revenue transactions and internal systems.
Share-based compensation expense recognized related to PSUs with a financial and strategic performance target is subject to the achievement of performance objectives and requires significant judgment by management in determining the current level of attainment of such performance objectives.
Share-based compensation expense recognized related to PSUs with a financial and strategic performance target is subject to the achievement of performance objectives and requires significant judgment by management in determining the current level of attainment of such performance objectives. Management may consider factors such as the latest financial forecasts and general business trends in the assessment of PSU award attainment.
Skills and Other revenues decreased by $64.5 million, or 40%, during the year ended December 31, 2022 compared to the same period in 2021.
Skills and Other revenues decreased by $19.2 million, or 20%, during the year ended December 31, 2023 compared to the same period in 2022.
Research and development expenses as a percentage of net revenues were 26% during the year ended December 31, 2022 compared to 23% of net revenues during the same period in 2021. Sales and Marketing Sales and marketing expenses during the year ended December 31, 2022 increased by $42.2 million, or 40%, compared to the same period in 2021.
Research and development expenses as a percentage of net revenues were 27% during the year ended December 31, 2023 compared to 26% of net revenues during the same period in 2022. Sales and Marketing Sales and marketing expenses during the year ended December 31, 2023 decreased by $21.1 million, or 14%, compared to the same period in 2022.
For these arrangements that contain multiple performance obligations, we allocate the transaction price based on the relative standalone selling price (SSP) method by comparing the SSP of each distinct performance obligation to the total value of the contract. We determine the SSP based on our historical pricing and discounting practices for the distinct performance obligation when sold separately.
For these arrangements that contain multiple performance obligations, we allocate the transaction price based on the relative standalone selling price (SSP) method by comparing the SSP of each distinct 47 Table of Contents performance obligation to the total value of the contract.
Seasonality of Our Business Revenues from Subscription Services are primarily recognized ratably over the subscription term which has generally resulted in our highest revenues and profitability in the fourth quarter as it reflects more days of the academic year.
Skills and Other revenues were 11% and 12% of net revenues during the years ended December 31, 2023 and 2022, respectively. Seasonality of Our Business Revenues from Subscription Services are primarily recognized ratably over the subscription term, which has generally resulted in our highest revenues and profitability in the fourth quarter as it reflects more days of the academic year.
Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Annual Report on Form 10-K, particularly in Part I, Item 1A, “Risk Factors.” Overview Millions of people all around the world Learn with Chegg. Our mission is to improve learning and learning outcomes by putting students first.
Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Annual Report on Form 10-K, particularly in Part I, Item 1A, “Risk Factors.” Overview Millions of people all around the world learn with Chegg. No matter the goal, level, or style, Chegg helps learners learn with confidence.
As a result, this amount is not included in the above table. We believe that our existing sources of liquidity will be sufficient to fund our operations and debt service obligations for at least the next 12 months.
We believe that our existing sources of liquidity will be sufficient to fund our operations and debt service obligations for at least the next 12 months.
Liquidity and Capital Resources As of December 31, 2022, our principal sources of liquidity were cash, cash equivalents, and investments totaling $1.3 billion, which were held for working capital purposes.
As of December 31, 2023, our principal sources of liquidity were cash, cash equivalents, and investments totaling $579.6 million, which were held for working capital purposes.
General and Administrative Our general and administrative expenses consist of salaries, benefits and share-based compensation expense for certain executives as well as our finance, legal, human resources and other administrative employees.
General and Administrative Our general and administrative expenses consist of employee-related expenses, which includes salaries, benefits and share-based compensation expense for certain executives as well as our finance, legal, human resources and other administrative employees. In addition, general and administrative expenses include outside services, legal and accounting services, and depreciation expense.
Benefit from (provision for) income taxes The following table sets forth our benefit from (provision for) income taxes for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2022 2022 2021 $ % Benefit from (provision for) income taxes $ 162,692 $ (7,197) $ 169,889 n/m _______________________________________ *n/m - not meaningful The change in benefit from (provision for) income taxes was primarily due to the release of the valuation allowance against a substantial amount of our U.S. and certain state jurisdictions deferred tax assets.
(Provision for) benefit from income taxes The following table presents our (provision for) benefit from income taxes for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2023 2023 2022 $ % (Provision for) benefit from income taxes $ (32,132) $ 162,692 $ (194,824) n/m _______________________________________ *n/m - not meaningful The change in (provision for) benefit from income taxes was primarily due to the absence of a valuation allowance benefit as a result of releasing our valuation allowance against a substantial amount of our U.S. deferred tax assets in 2022 and the current year provision for income taxes.
On an ongoing basis, we evaluate our estimates and assumptions. Our actual results may differ from these estimates under different assumptions or conditions.
Our actual results may differ from these estimates under different assumptions or conditions.
Students typically pay to access Subscription Services on a monthly basis. Our Chegg Study subscription service provides “Expert Questions and Answers” and step-by-step “Textbook Solutions,” helping students with their course work. When students need writing help, including plagiarism detection scans and creating citations for their papers, they can use our Chegg Writing subscription service.
Students typically pay to access Subscription Services on a monthly basis. Our Chegg Study subscription service provides access to personalized, step-by-step learning support powered by AI, computational engines, and subject matter experts. When students need writing help, including plagiarism detection scans and creating citations for their papers, they can use our Chegg Writing subscription service.
Our Chegg Math subscription service, including Mathway, helps students understand math by providing a step-by-step math solver and calculator. We also offer our Chegg Study Pack as a premium subscription bundle of our Chegg Study, Chegg Writing, and Chegg Math services, which also includes additional features such as flashcards, concept videos, practice questions and quizzes, and instructor-created materials through Uversity.
Our Chegg Math subscription service, including Mathway, helps students understand math by providing a step-by-step math solver and calculator. We also offer our Chegg Study Pack as a premium subscription bundle of our Chegg Study, Chegg Writing, and Chegg Math services.
Skills and Other revenues represented 21% and 29% of net revenues during the years ended December 31, 2021 and 2020, respectively.
Skills and Other revenues represented 11% and 12% of net revenues during the years ended December 31, 2023 and 2022, respectively.
These risks and uncertainties are described in greater detail in Part I, Item 1A, “Risk Factors.” We have presented revenues for our two product lines, Subscription Services and Skills and Other, based on how students view us and the utilization of our products by them.
We have presented revenues for our two product lines, Subscription Services and Skills and Other, based on how students view us and the utilization of our products by them.
The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors.
The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors. As of December 31, 2022, we had $642.6 million remaining under the securities repurchase program.
Beginning in April 2022 for print textbooks and December 2022 for eTextbooks, we have concluded that GT controls the service and we recognize revenues on a net basis based on our role in the transaction as an agent.
We have concluded that we control our Subscription Services and therefore we recognize revenues and cost of revenues on a gross basis. For print textbooks and eTextbooks, we have concluded that we do not control the service and therefore we recognize revenues on a net basis based on our role in the transaction as an agent.
The decrease was primarily due to the partial extinguishment of the 2026 notes in 2022 as well as the full redemption of the 2023 notes in 2021. Other income (expense), net increased by $166.5 million during the year ended December 31, 2022, compared to the same period in 2021.
The decrease was primarily due to partial early extinguishments of our convertible senior notes. Other income (expense), net increased by $20.8 million, or 21%, during the year ended December 31, 2023, compared to the same period in 2022.
In addition, general and administrative expenses include outside services, legal and accounting services, and depreciation expense. 40 Table of Contents Interest Expense, Net and Other Income (Expense), Net Interest expense, net consists primarily of interest expense on the amortization of debt issuance costs related to the convertible senior notes.
Interest Expense, Net and Other Income (Expense), Net Interest expense, net consists primarily of interest expense on the amortization of debt issuance costs related to the convertible senior notes.
The increase was primarily attributable to increased international marketing spend, including incremental marketing spend from Busuu, of $17.9 million, higher other depreciation and amortization expense of $9.5 million, and higher employee-related expenses, including share-based compensation expense, of $8.8 million.
The decrease was primarily attributable to lower paid marketing expenses of $9.8 million, primarily due to Busuu, lower employee-related expenses, including share-based compensation expense, of $5.7 million, and lower other depreciation and amortization expense of $1.2 million, partially offset by restructuring charges of $1.2 million.
We plan to continue to invest in the expansion of our offerings to provide a more compelling and personalized solution and deepen engagement with students.
We continue to invest in the expansion of our offerings and technology platform to provide a more compelling and personalized solution and deepen engagement with students. As AI technologies continue to advance, we are taking advantage of the increased opportunities by leveraging new tools to better serve our students.
In any particular period, the timing of additional hires could materially affect our operating expenses, both in absolute dollars and as a percentage of revenues. Our operating expenses also contain information technology expenses such as technology costs to support our research and development, sales and marketing expenses, depreciation expenses, amortization of acquired intangible assets, and outside services.
Our operating expenses also contain information technology expenses such as technology costs to support our research and development, sales and marketing expenses, depreciation expenses, amortization of acquired intangible assets, and outside services. We allocate certain costs to each expense category, primarily based on the headcount in each group at the end of a period.
The increase was primarily due to the $93.5 million gain on early extinguishment of a portion of the 2026 notes, $5.7 million increase in interest income, the $4.6 million gain on foreign currency remeasurement of purchase consideration related to our acquisition of Busuu, and the absence of certain items in 2021 including the $78.2 million loss on early extinguishment of debt of a portion of the 2025 notes and the $7.1 million net loss on the change in fair value of derivative instruments, partially offset by a $9.5 million increase in realized losses on the sale of certain investments primarily to align with our updated investment policy, and the absence of the $12.5 million gain on the sale of the strategic equity investments in 2021.
The increase was primarily due to a $85.9 million gain on early extinguishments of a portion of the 2026 notes and 2025 notes and an increase in interest income of $25.0 million, partially offset by the absence of the $93.5 million gain on early extinguishment of a portion of the 2026 notes that occurred in August 2022 and the absence of the $4.6 million gain on foreign currency remeasurement of purchase consideration related to our acquisition of Busuu.
This variable consideration can either increase or decrease the total transaction price depending on the nature of the variable consideration. We estimate the amount of variable consideration that we will earn at the inception of the contract, adjusted during each period, and include an estimated amount each period.
We estimate the amount of variable consideration that we will earn at the inception of the contract, adjusted during each period, and include an estimated amount each period. In determining this estimate, we consider the single most likely amount in a range of possible amounts.
The 2026 notes and 2025 notes mature on September 1, 2026 and March 15, 2025, respectively, unless converted, redeemed, or repurchased in accordance with their terms prior to such dates. As of December 31, 2022, we have incurred cumulative losses of $70.6 million from our operations and we may incur additional losses in the future.
Convertible senior notes, net decreased $588.8 million primarily due to early extinguishments. The 2026 notes and 2025 notes mature on September 1, 2026 and March 15, 2025, respectively, unless converted, redeemed, or repurchased in accordance with their terms prior to such dates.
General and administrative expenses as a percentage of net revenues were 28% during the year ended December 31, 2022 compared to 20% during the same period in 2021. 43 Table of Contents Interest Expense, Net and Other Income (Expense), Net The following table sets forth our interest expense, net, and other income (expense), net, for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2022 2022 2021 $ % Interest expense, net $ (6,040) $ (6,896) $ 856 (12) % Other income (expense), net 101,029 (65,472) 166,501 n/m Total interest expense, net and other income (expense), net $ 94,989 $ (72,368) $ 167,357 n/m _______________________________________ *n/m - not meaningful Interest expense, net decreased by $0.9 million, or 12%, during the year ended December 31, 2022, compared to the same period in 2021.
Interest Expense, Net and Other Income (Expense), Net The following table presents our interest expense, net, and other income (expense), net, for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2023 2023 2022 $ % Interest expense, net $ (3,773) $ (6,040) $ 2,267 (38) % Other income (expense), net 121,810 101,029 20,781 21 % Total interest expense, net and other income (expense), net $ 118,037 $ 94,989 $ 23,048 24 % 44 Table of Contents Interest expense, net decreased by $2.3 million, or 38%, during the year ended December 31, 2023, compared to the same period in 2022.
The increase was primarily due to higher employee-related expenses, including share-based compensation expense, of $44.5 million and impairment of lease related assets of $5.2 million.
The decrease was primarily attributable to lower employee-related expenses, including share-based compensation expense, of $2.1 million, and lower contractor spend of $1.5 million, partially offset by restructuring charges of $1.7 million.
We also provide a platform for students to rent or buy print textbooks and eTextbooks, which helps students save money compared to the cost of buying new. Skills and Other revenues were 12%, 21%, and 29% of net revenues during the years ended December 31, 2022, 2021 and 2020, respectively.
We work with leading brands and programmatic partners to deliver advertising across our platforms. We also provide a platform for students to rent or buy print textbooks and eTextbooks, which helps students save money compared to the cost of buying new.
The decrease was primarily due to lower revenues from print textbooks as a result of our partnership with GT beginning in April 2022 and lower unit volumes driven by decreased college enrollments, partially offset by an increase in revenues related to our Skills offerings.
The decrease was primarily due to lower revenues of $26.5 million from print textbooks and eTextbooks as a result of recognizing revenue on a net basis from our partnership with GT Marketplace, LLC that began in April 2022, offset by growth in our Chegg Skills offering of $13.0 million.
Our convertible senior notes are recorded on our consolidated balance sheets at the carrying amount of $1.2 billion as of December 31, 2022. (2) Represents contractual obligations primarily related to information technology services. (3) Our corporate offices are leased under operating leases, which expire at various dates through 2028.
The 2025 notes are classified as a current liability as holders may convert the 2025 notes at any time within twelve months after the reporting date, however they mature on March 15, 2025. (2) Represents contractual obligations primarily related to information technology services. (3) Our corporate offices are leased under operating leases, which expire at various dates through 2028.
We allocate certain costs to each expense category, primarily based on the headcount in each group at the end of a period. As our business grows, our operating expenses may increase over time to expand capacity and sustain our workforce.
As our business grows, our operating expenses may increase over time to expand capacity and sustain our workforce.
As of December 31, 2022, our foreign subsidiaries held an insignificant amount of cash in foreign jurisdictions. We currently do not intend or foresee a need to repatriate some of these foreign funds; however, as a result of the Tax Cuts and Jobs Act, we anticipate the U.S. federal impact to be minimal if these foreign funds are repatriated.
As a result of the Tax Cuts and Jobs Act, we anticipate the U.S. federal impact for the remaining foreign jurisdictions to be minimal if these funds are repatriated. In addition, based on our current and future needs, we believe our current funding and capital resources for our international operations are adequate.
(Busuu), an online language learning company that offers a comprehensive solution through a combination of self-paced lessons, live classes with expert tutors and the ability to learn and practice with members of the Busuu language learning community. Our long-term strategy is centered upon our ability to utilize Subscription Services to increase student engagement with our learning platform.
Subscribers to Busuu have access to a premium learning language platform that offers comprehensive support through self-paced lessons, live classes with expert tutors and a huge community of members to practice alongside.
Gross margins increased to 74% during the year ended December 31, 2022, from 67% during the same period in 2021. 42 Table of Contents Operating Expenses The following table sets forth our total operating expenses for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2022 2022 2021 $ % Research and development (1) $ 196,637 $ 178,821 $ 17,816 10 % Sales and marketing (1) 147,660 105,414 42,246 40 General and administrative (1) 216,247 159,019 57,228 36 Total operating expenses $ 560,544 $ 443,254 $ 117,290 26 (1) Includes share-based compensation expense of: Research and development $ 41,335 $ 37,131 $ 4,204 11 % Sales and marketing 13,857 13,887 (30) 0 General and administrative 75,780 56,207 19,573 35 Share-based compensation expense $ 130,972 $ 107,225 $ 23,747 22 The increases in employee-related operating expenses noted below during the year ended December 31, 2022, compared to the same period in 2021, are largely driven by incremental employees from our acquisition of Busuu.
Gross margins decreased to 68% during the year ended December 31, 2023, from 74% during the same period in 2022. 43 Table of Contents Operating Expenses The following table presents our total operating expenses for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2023 2023 2022 $ % Research and development (1) $ 191,705 $ 196,637 $ (4,932) (3) % Sales and marketing (1) 126,591 147,660 (21,069) (14) General and administrative (1) 239,783 216,247 23,536 11 Total operating expenses $ 558,079 $ 560,544 $ (2,465) 0 (1) Includes share-based compensation expense of: Research and development $ 44,103 $ 41,335 $ 2,768 7 % Sales and marketing 9,524 13,857 (4,333) (31) General and administrative 77,619 75,780 1,839 2 Share-based compensation expense $ 131,246 $ 130,972 $ 274 0 Research and Development Research and development expenses during the year ended December 31, 2023 decreased by $4.9 million, or 3%, compared to the same period in 2022.
Cost of revenues primarily consists of content amortization expense related to content that we develop, license from publishers, or acquire through acquisitions, web hosting fees, customer support fees, payment processing costs, amortization of acquired intangible assets, order fulfillment fees primarily related to outbound shipping and fulfillment as well as publisher content fees for eTextbooks, write-downs for print textbooks, the gain or loss on print textbooks liquidated, the net book value of print textbooks purchased by students at the end of the term or on a just-in-time basis, print textbook depreciation expense, personnel costs and other direct costs related to providing content or services.
Cost of revenues primarily consists of content amortization expense related to content that we develop, license from publishers, or acquire through acquisitions, web hosting fees, customer support fees, payment processing costs, amortization of acquired intangible assets, employee-related expenses, which includes salaries, benefits and share-based compensation expense, and other direct costs related to providing content or services.
If the SSP is not directly observable, we estimate the SSP by considering information such as market conditions, and information about the customer. Some of our customer arrangements may include an amount of variable consideration in addition to a fixed revenue share that we earn.
Some of our customer arrangements may include an amount of variable consideration in addition to a fixed revenue share that we earn. This variable consideration can either increase or decrease the total transaction price depending on the nature of the variable consideration.
One of the most significant components of our operating expenses is employee-related costs, which include salaries, benefits, and share-based compensation expenses. We expect to continue to hire new employees in order to support our current and anticipated growth.
In addition, cost of revenues includes allocated information technology and facilities costs. Operating Expenses We classify our operating expenses into three categories: research and development, sales and marketing, and general and administrative. One of the most significant components of our operating expenses is employee-related expenses, which include salaries, benefits, and share-based compensation expense.
During the years ended December 31, 2022, and 2021, we generated net revenues of $766.9 million and $776.3 million, respectively, and in the same periods had net income of $266.6 million and net loss of $1.5 million, respectively.
Our ability to achieve these long-term objectives is subject to numerous risks and uncertainties, which are described in greater detail in Part I, Item 1A, “Risk Factors.” During the years ended December 31, 2023, and 2022, we generated net revenues of $716.3 million and $766.9 million, respectively, and in the same periods had net income of $18.2 million and $266.6 million, respectively.
The increase was primarily due to an increased global brand awareness and penetration, including our acquisition of Busuu, which closed in January 2022, and increased students subscribing to the Chegg Study Pack. Subscription Services revenues represented 88% and 79% of net revenues during the years ended December 31, 2022 and 2021, respectively.
The decrease was primarily due to a 6% decrease in subscribers who have paid to access our services. Subscription Services revenues represented 89% and 88% of net revenues during the years ended December 31, 2023 and 2022, respectively.
Research and Development Research and development expenses during the year ended December 31, 2022 increased by $17.8 million, or 10%, compared to the same period in 2021. The increase was primarily attributable to higher employee-related expenses, including share-based compensation expense, of $13.0 million and higher technology expenses to support our research and development of $4.7 million.
Net cash used in financing activities increased $108.0 million, or 14%, during the year ended December 31, 2023, compared to the same period in 2022 and was primarily related to higher repurchases of our convertible senior notes of $104.8 million.
Cost of revenues decreased $57.5 million, or 23%, during the year ended December 31, 2022, compared to the same period in 2021.
General and administrative expenses as a percentage of net revenues were 33% during the year ended December 31, 2023 compared to 28% during the same period in 2022.
Cash Flows from Investing Activities Net cash provided by investing activities during the year ended December 31, 2022 was $104.9 million and was related to the maturity of investments of $884.9 million and proceeds from sale of investments of $458.5 million partially offset by the purchases of investments of $730.5 million, the acquisition of business of $401.1 million, and purchases of property and equipment of $103.1 million.
Net cash provided by investing activities increased $163.8 million, or 156%, during the year ended December 31, 2023, compared to the same period in 2022 and was primarily related to the absence of acquisitions of $401.1 million, which was partially offset by lower cash from investment maturities of $287.7 million.
Revenues from Skills are recognized either ratably over a six month course offering depending on the instruction type of the course, adjusted for an estimate of non-redemption. Revenues from advertising services are recognized upon fulfillment.
Revenues from Chegg Skills are recognized over the delivery period, adjusted for an estimate of non-redemption. Revenues from advertising services are recognized upon fulfillment. Revenues from print textbooks and eTextbooks are recognized immediately. Cost of Revenues Our cost of revenues consists primarily of expenses associated with the delivery and distribution of our products and services.
Skills and Other Our Skills and Other product line includes revenues from Skills, advertising services, print textbooks and eTextbooks. Our skills-based learning platform offers professional courses focused on the most in-demand technology skills. We work with leading brands and programmatic partners to deliver advertising across our platforms.
Subscription Services revenues were 89% and 88% of net revenues during the years ended December 31, 2023 and 2022, respectively. 39 Table of Contents Skills and Other Our Skills and Other product line includes revenues from Skills, advertising services, print textbooks and eTextbooks. Our skills-based learning platform offers learning experiences focused on the latest technology skills.
Years Ended December 31, 2022 and 2021 Cost of Revenues The following table sets forth our cost of revenues for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2022 2022 2021 $ % Cost of revenues (1) $ 197,396 $ 254,904 $ (57,508) (23) % (1) Includes share-based compensation expense of: $ 2,484 $ 1,621 $ 863 53 % As a result of our partnership with GT, cost of revenues decreased due to lower order fulfillment fees, net change in the gain on textbook library, lower print textbook depreciation expense, and lower cost of textbooks purchased by students.
Cost of Revenues The following table presents our cost of revenues for the periods shown (in thousands, except percentages): Years Ended December 31, Change in 2023 2023 2022 $ % Cost of revenues (1) $ 225,941 $ 197,396 $ 28,545 14 % (1) Includes share-based compensation expense of: $ 2,256 $ 2,484 $ (228) (9) % Cost of revenues increased $28.5 million, or 14%, during the year ended December 31, 2023, compared to the same period in 2022.
Net cash used in investing activities during the year ended December 31, 2021 was $365.8 million and was related to the purchases of investments of $1.7 billion, purchases of property and equipment of $94.2 million, purchases of textbooks of $10.9 million, and the acquisition of business of $7.9 million partially offset by the maturity of investments of $1.2 billion, proceeds from sale of investments of $206.0 million, proceeds from the sale of our equity investments of $16.1 million and proceeds from disposition of textbooks of $8.7 million.
Cash, cash equivalents, and investments decreased $694.3 million during the year ended December 31, 2023 primarily due to the early extinguishments of our convertible senior notes of $506.0 million, repurchase of shares of our common stock of $334.8 million and purchases of property and equipment of $83.1 million, partially offset by the net cash provided by operating activities of $246.2 million.