Biggest changeCash used in investing activities increased $233.3 million in 2023 compared to 2022 primarily due to cash paid for acquisitions, net of cash acquired, of $218.6 million in connection with acquisitions during the current period as discussed in Note (2) "Acquisitions" to the consolidated financial statements. -22- Table of Contents Cash provided by financing activities was $265.0 million in 2023 compared to cash used in financing activities of $5.7 million in 2022.
Biggest changeCash used in investing activities increased $28.0 million in 2024 compared to 2023 primarily due to an increase of $64.5 million in net cash paid for acquisitions completed in the current period as discussed in Note (2) "Acquisitions" to the consolidated financial statements, partially offset by cash provided of $40.2 million related to the FDS sale as discussed in Note (3) "Discontinued Operations" to the consolidated financial statements. -22- Table of Contents Cash provided by financing activities increased $50.8 million in 2024 compared to 2023 primarily due to an increase of $196.0 million in proceeds related to our public underwritten offerings of our common stock in the current period as compared to the prior year, partially offset by a decrease in net borrowings of our debt during the current period of $144.9 million.
Our credit agreement is with a bank group and includes a term loan and a revolving facility, with an aggregate maximum borrowing capacity under our revolving facility of $350.0 million. Under the credit agreement we may elect to increase the maximum availability of the term loan, the revolving facility, or a combination of both, subject to customary lender commitment approvals.
Our credit agreement is with a bank group and includes a term loan and revolving facility, with an aggregate maximum borrowing capacity under our revolving facility of $350.0 million. Under the credit agreement we may elect to increase the maximum availability of the term loan, the revolving facility, or a combination of both, subject to customary lender commitment approvals.
Liquidity Our internal sources of liquidity are primarily from operating activities, specifically from changes in our level of revenues and associated inventory, accounts receivable and accounts payable, and from profitability. Significant increases or decreases in revenues and inventory, accounts receivable and accounts payable can affect our liquidity.
Liquidity Our internal sources of liquidity are primarily from operating activities, specifically from changes in our level of revenues and associated inventory, accounts receivable and accounts payable, and from profitability. Significant increases or decreases in these operating activities can affect our liquidity.
We periodically evaluate the carrying value of inventory, considering factors such as its physical condition, sales patterns and expected future demand in order to estimate the amount necessary to write down any slow moving, obsolete or damaged inventory.
We periodically evaluate the carrying value of inventory, considering factors such as its physical condition, sales patterns and demand in order to estimate the amount necessary to write down any slow moving, obsolete or damaged inventory.
Deferred tax assets are evaluated quarterly to determine if valuation allowances are required or should be adjusted. -25- Table of Contents Recent Accounting Pronouncements See "Nature of Business and Summary of Significant Accounting Policies—Recent Accounting Pronouncements" in Note (1) to our Consolidated Financial Statements included below in Item 8 of this annual report on Form 10-K for additional information.
Deferred tax assets are evaluated quarterly to determine if valuation allowances are required or should be adjusted. Recent Accounting Pronouncements See "Recent Accounting Pronouncements" in Note (1) "Nature of Business and Summary of Significant Accounting Policies" to our Consolidated Financial Statements included below in Item 8 of this annual report on Form 10-K for additional information.
The following generally discusses 2023 and 2022 items and year-to-year comparisons between 2023 and 2022. Discussions of 2021 items and year-to-year comparisons between 2022 and 2021 that are not included in this Form 10-K can be found under Item 7.
The following generally discusses 2024 and 2023 items and year-to-year comparisons between 2024 and 2023. Discussions of 2022 items and year-to-year comparisons between 2023 and 2022 that are not included in this Form 10-K can be found under Item 7.
"Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for fiscal year ended December 31, 2022, filed with the SEC on March 10, 2023.
"Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for fiscal year ended December 31, 2023, filed with the SEC on March 8, 2024.
The majority of our contracts have a single performance obligation to transfer goods or services. Our performance obligations are satisfied over time as work progresses or at a point in time based on transfer of control of products and services to our customers. Our Aviation segment revenues result from the sale of aircraft parts and the performance of MRO services.
Our performance obligations are satisfied over time as work progresses or at a point in time based on transfer of control of products and services to our customers. Our Aviation segment revenues result from the sale of aircraft parts and the performance of MRO services.
We paid cash dividends totaling approximately $5.4 million, or $0.40 per share, in 2023. Pursuant to our credit agreement, our payment of cash dividends is subject to annual restrictions. We have paid cash dividends each year since 1973.
We paid cash dividends totaling approximately $7.1 million, or $0.40 per share, in 2024. Pursuant to our credit agreement, our payment of cash dividends is subject to annual restrictions. We have paid cash dividends each year since 1973.
In addition, costs and operating expenses for this segment included expenses for amortization of intangible assets associated with acquisitions and allocated corporate costs. Expense for amortization of intangible assets increased $2.4 million in 2023 to $11.7 million from $9.3 million in 2022 driven by newly acquired intangibles in connection with acquisitions completed in the current year.
In addition, costs and operating expenses for this segment included expenses for amortization of intangible assets associated with acquisitions and allocated corporate costs. Expense for amortization of intangible assets increased $5.9 million in 2024 to $17.6 million from $11.7 million in 2023 driven by newly acquired intangibles in connection with acquisitions completed in the current year.
In 2023, we secured key multi-year distribution deals for both domestic and new international markets, including an expansion of our flagship distribution agreement with Pratt & Whitney Canada supporting Europe, the Middle East, and Africa. These new distribution initiatives are expected to drive sustainable and recurring revenue with growth opportunities, contributing to future positive results.
In 2024, we ramped up several multi-year distribution and repair programs for both domestic and new international markets, including an expansion of our flagship distribution agreement with Pratt & Whitney Canada supporting Europe, the Middle East, and Africa. These new programs are expected to drive sustainable and recurring revenue with growth opportunities, contributing to future positive results.
Business Overview We are a leading provider of aftermarket distribution and maintenance, repair and overhaul ("MRO") services for air and land transportation assets for commercial and government markets. Our operations are conducted within two reportable segments aligned with our operating segments: Aviation and Fleet.
Business Overview VSE Corporation, through its subsidiaries (collectively, "VSE," the "Company," "we," "us," or "our"), is a leading provider of aftermarket distribution and maintenance, repair and overhaul ("MRO") services for air and land transportation assets for commercial and government markets. Our operations are conducted within two reportable segments aligned with our operating segments: Aviation and Fleet.
Substantially all Fleet segment revenues from the sale of vehicle parts to customers are recognized at the point in time of the transfer of control to the customer.
Substantially all Fleet segment revenues from the sale of vehicle parts to customers are recognized at the point in time of the transfer of control to the customer. Sales returns and allowances for vehicle parts are not significant.
In addition, costs and operating expenses for this segment included expense for amortization of intangible assets associated with acquisitions and allocated corporate costs. Expense for amortization of intangible assets decreased $3.8 million in 2023 to $2.6 million from $6.4 million in 2022 driven by intangibles becoming fully amortized during the current year.
In addition, costs and operating expenses for this segment included expense for amortization of intangible assets associated with acquisitions and allocated corporate costs. Expense for amortization of intangible assets decreased $2.5 million in 2024 to $0.1 million from $2.6 million in 2023 driven by substantially all intangibles becoming fully amortized during the prior year.
Costs and operating expenses for our operating segments increase and decrease in conjunction with the level of business -20- Table of Contents activity and revenues generated by each segment. See "Segment Operating Results" section below for further discussion of costs and operating expenses by segment. Operating Income.
Costs and operating expenses increased $226.2 million, or 29%, in 2024 compared to 2023. Costs and operating expenses for our operating segments increase and decrease in conjunction with the level of business -20- Table of Contents activity and revenues generated by each segment. See "Segment Operating Results" section below for further discussion of costs and operating expenses by segment.
We believe our existing balances of cash and cash equivalents, along with our cash flows from operations and debt instruments under our credit agreement mentioned above, will provide sufficient liquidity for our business operations as well as capital expenditures, dividends, and other capital requirements associated with our business operations over the next twelve months and thereafter for the foreseeable future. -23- Table of Contents Other Obligations and Commitments See Note (7) "Debt" to our Consolidated Financial Statements for information regarding our long-term debt obligations.
We believe our existing balances of cash and cash equivalents, along with our cash flows from operations and debt instruments under our credit agreement mentioned above, will provide sufficient liquidity for our business operations as well as capital expenditures, dividends, and other capital requirements associated with our business operations over the next twelve months and thereafter for the foreseeable future.
We estimate the fair value of our reporting units using a weighting of fair values derived from the income approach and market approach. The analysis relies on significant judgements and assumptions about expected future cash flows, weighted-average cost of capital, discount rates, expected long-term growth rates, and financial measures derived from observable market data of comparable public companies.
The analysis relies on significant judgements and assumptions about expected future cash flows, weighted-average cost of capital, discount rates, expected long-term growth rates, and financial measures derived from observable market data of comparable public companies.
See Note (2) "Acquisitions" to the consolidated financial statements for further information. Underwritten Public Offering In July 2023, we initiated a public offering of the Company's common stock relating to the issuance and sale of 2,846,250 shares at a public offering price of $48.50 per share.
See Note (2) "Acquisitions" to the consolidated financial statements for further information. Underwritten Public Offerings In May 2024, we initiated a public offering of the Company's common stock relating to the issuance and sale of 2,429,577 shares at a public offering price of $71.00 per share.
The development and selection of these critical accounting policies have been determined by our management. Due to the significant judgment involved in selecting certain of the assumptions used in these policies, it is possible that different parties could choose different assumptions and reach different conclusions. We consider our policies relating to the following matters to be critical accounting policies.
Due to the significant judgment involved in selecting certain of the assumptions used in these policies, it is possible that different parties could choose different assumptions and reach different conclusions. We consider our policies relating to the following matters to be critical accounting policies. Revenue Recognition We account for revenue in accordance with ASC 606.
Revenue Recognition We account for revenue in accordance with ASC 606. The unit of account in ASC 606 is a performance obligation. At the inception of each contract with a customer, we determine our performance obligations under the contract and the contract's transaction price.
The unit of account in ASC 606 is a performance obligation. At the inception of each contract with a customer, we determine our performance obligations under the contract and the contract's transaction price. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is defined as the unit of account.
We evaluate goodwill for our reporting units for impairment at least annually on the first day of the fourth quarter, or whenever events or other changes in circumstances indicate that the carrying value may not be fully recoverable. We estimate and compare the fair value of each reporting unit to its respective carrying value including goodwill.
We recognize purchased intangible assets in connection with our business acquisitions at fair value on the acquisition date. We evaluate goodwill for our reporting units for impairment at least annually on the first day of the fourth quarter, or whenever events or other changes in circumstances indicate that the carrying value may not be fully recoverable.
Based on the annual goodwill impairment test performed during the fourth quarter of 2023, we determined that each reporting unit's fair value significantly exceeded its carrying value.
Based on the annual goodwill impairment test performed during the fourth quarter of 2024, our qualitative impairment test determined that it was more likely than not that each reporting unit's fair value exceeded its carrying value.
See Note (12) "Leases" to our Consolidated Financial Statements for information pertaining to future minimum lease payments relating to our operating lease obligations. Inflation and Pricing Our Aviation and Fleet segments have experienced broad-based inflationary impacts consistent with overall trends in the aerospace and industrial distribution market, due primarily to increased materials, labor, and services costs.
Inflation and Pricing Our Aviation and Fleet segments have experienced broad-based inflationary impacts consistent with overall trends in the aerospace and industrial distribution market, due primarily to increased materials, labor, and services costs.
Repair revenue increased $49.8 million, or 46%, driven by an expansion of repair capabilities, improved end market demand, and share gains with commercial and B&GA customers. Costs and Operating Expenses. Costs and operating expenses increased $101.2 million, or 27%, in 2023 compared to 2022 primarily due to increased revenues as discussed above.
Repair revenue increased $135.9 million, or 86%, driven by an expansion of repair capabilities, improved end market demand, share gains with commercial and B&GA customers, and contributions from the acquisition of TCI (April 2024). Costs and Operating Expenses. Costs and operating expenses increased $212.0 million, or 45%, in 2024 compared to 2023 primarily due to increased revenues as discussed above.
Off-Balance Sheet Arrangements We do not have any off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our financial condition, changes in financial condition, revenue or expenses, results of operations, liquidity, capital expenditures or capital resources.
Off-Balance Sheet Arrangements We do not have any off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our financial condition, changes in financial condition, revenue or expenses, results of operations, liquidity, capital expenditures or capital resources. -23- Table of Contents Critical Accounting Policies, Estimates and Judgments Our consolidated financial statements are prepared in accordance with United States generally accepted accounting principles ("U.S.
Critical Accounting Policies, Estimates and Judgments Our consolidated financial statements are prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP"), which require us to make estimates and assumptions. Certain critical accounting policies affect the more significant accounts, particularly those that involve judgments, estimates and assumptions used in the preparation of our consolidated financial statements.
GAAP"), which require us to make estimates and assumptions. Certain critical accounting policies affect the more significant accounts, particularly those that involve judgments, estimates and assumptions used in the preparation of our consolidated financial statements. The development and selection of these critical accounting policies have been determined by our management.
Revenues increased $191.0 million, or 29%, in 2023 compared to 2022 due to revenue growth in our Aviation segment of $135.9 million and our Fleet segment of $55.1 million. See "Segment Operating Results" section below for further discussion of revenues by segment. Costs and Operating Expenses. Costs and operating expenses increased $156.6 million, or 25%, in 2023 compared to 2022.
Revenues increased $219.6 million, or 26%, in 2024 compared to 2023 due to revenue growth in our Aviation segment of $242.2 million, partially offset by a decline in our Fleet segment of $22.6 million. See "Segment Operating Results" section below for further discussion of revenues by segment. Costs and Operating Expenses.
The offering closed in two transactions, and net proceeds of $129.1 million were received by the Company, which were used to repay outstanding borrowings under our revolving credit facility and for general corporate purposes. See Note (15) "Capital Stock" to the consolidated financial statements for further information.
The offering closed on October 17, 2024, and net proceeds of $163.8 million were received by the Company, which were used to finance a portion of the cash consideration for the Kellstrom Aerospace acquisition and repay outstanding borrowings under our revolving facility. See Note (15) "Capital Stock" to the consolidated financial statements for further information.
("TCI"), a leading provider of aftermarket MRO support services for complex engine components, as well as engine and airframe accessories, across commercial and military applications.
("TCI"), a leading provider of aftermarket MRO support services for complex engine components, as well as engine and airframe accessories, across commercial and military applications. In December 2024, we completed the acquisition of Kellstrom Aerospace Group, Inc. ("Kellstrom Aerospace"), a diversified global distributor and service provider supporting the commercial aerospace engine aftermarket.
Revenues increased $135.9 million, or 33%, in 2023 compared to 2022. Distribution revenue increased $86.2 million, or 29%, driven by strong program execution on new and existing distribution contracts and contributions from the acquisition of Desser Aerospace (which occurred in July 2023).
Revenues increased $242.2 million, or 45%, in 2024 compared to 2023. Distribution revenue increased $106.3 million, or 27%, driven by strong program execution on new and existing distribution programs and contributions from the acquisitions of Desser Aerospace (July 2023) and Kellstrom Aerospace (December 2024).
Expense for allocated corporate costs was $12.9 million for 2023 and 2022, respectively. Operating Income.
Expense for allocated corporate costs was $18.5 million for 2024 as compared to $12.9 million for 2023. Operating Income.
A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is defined as the unit of account. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when the performance obligation is satisfied.
A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when the performance obligation is satisfied. The majority of our contracts have a single performance obligation to transfer goods or services.
Liquidity and Capital Resources Cash Flows The following table summarizes our cash flows (in thousands): Year ended December 31, 2023 2022 Net cash (used in) provided by operating activities $ (21,829) $ 8,051 Net cash used in investing activities (235,690) (2,377) Net cash provided by (used in) financing activities 264,971 (5,714) Net increase (decrease) in cash and cash equivalents $ 7,452 $ (40) Cash used in operating activities was $21.8 million in 2023 compared to cash provided by operating activities of $8.1 million in 2022.
Liquidity and Capital Resources Cash Flows The following table summarizes our cash flows (in thousands): For the years ended December 31, 2024 2023 Net cash used in operating activities $ (31,037) $ (21,829) Net cash used in investing activities (263,669) (235,690) Net cash provided by financing activities 315,806 264,971 Net increase in cash and cash equivalents $ 21,100 $ 7,452 Cash used in operating activities increased $9.2 million in 2024 compared to 2023 primarily due to the working capital impact of the FDS Sale and related expenses incurred.
Operating income increased $34.8 million, or 95%, in 2023 compared to 2022 primarily due to revenue growth and a favorable shift in sales mix and pricing. -21- Table of Contents Fleet Segment Results The results of operations for our Fleet segment were as follows (in thousands): Years ended December 31, 2023 2022 Change ($) Change (%) Revenues $ 316,468 $ 261,336 $ 55,132 21 % Costs and operating expenses 285,211 237,425 47,786 20 % Operating income $ 31,257 $ 23,911 $ 7,346 31 % Revenues.
Operating income increased $30.2 million, or 42%, in 2024 compared to 2023 primarily due to revenue growth and a favorable shift in sales mix and pricing, partially offset by an increase in intangible amortization and allocated corporate costs. -21- Table of Contents Fleet Segment Results The results of operations for our Fleet segment were as follows (in thousands): Years ended December 31, 2024 2023 Change ($) Change (%) Revenues $ 293,876 $ 316,468 $ (22,592) (7) % Costs and operating expenses 276,858 285,211 (8,353) (3) % Operating income $ 17,018 $ 31,257 $ (14,239) (46) % Profit percentage 5.8 % 9.9 % Revenues.
Our outstanding borrowings under our term loan and revolving facility increased $144 million, and we had $216 million of unused commitments under the credit agreement as of December 31, 2023.
Financial Condition There has been no material adverse change in our financial condition in 2024. Our outstanding borrowings under our term loan and revolving facility decreased $0.5 million, and we had $194 million of unused commitments under the credit agreement as of December 31, 2024.
Fleet is executing its revenue diversification strategy by acquiring new customers and expanding product options for the e-commerce fulfillment business. Commercial customer revenue continues to experience strong growth, increasing 45% in 2023 compared to the prior year. We anticipate continued growth as we extend our reach to meet the increasing demand from the commercial market.
Fleet Segment Our Fleet segment continues to see growth in revenue from commercial fleet customers and e-commerce fulfillment, as the segment moves towards revenue diversification. Fleet is executing its revenue diversification strategy by continuing to scale our Olive Branch, MS, e-commerce fulfillment distribution facility, acquiring new customers, and expanding product options for our commercial business.
For tax purposes, current year COLI book income was nontaxable income resulting in a reduction to our effective tax rate as opposed to 2022 nondeductible COLI loss that increased our effective tax rate. Our tax rate is also affected by discrete items that may occur in any given year but may not be consistent from year to year.
The decrease in our effective tax rate primarily resulted from a favorable excess stock tax deduction and lower pre-tax book income in 2024. Our tax rate is also affected by discrete items that may occur in any given year but may not be consistent from year to year.
Valuation of Goodwill and Intangible Assets Goodwill represents the excess of fair value of consideration paid for an acquisition over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. We recognize purchased intangible assets in connection with our business acquisitions at fair value on the acquisition date.
The results of operations of businesses acquired are included in the consolidated financial statements from their dates of acquisition. -24- Table of Contents Valuation of Goodwill and Intangible Assets Goodwill represents the excess of fair value of consideration paid for an acquisition over the fair value of the net assets acquired and liabilities assumed as of the acquisition date.
Recent Developments Sale of Federal and Defense Segment In May 2023, we announced our decision to sell our Federal and Defense segment. As a result, we have reported the results of operations for the Federal and Defense segment as discontinued operations for all periods presented. See Note (3) "Discontinued Operations" to our Consolidated Financial Statements for further information.
Recent Developments Sale of Federal and Defense Segment In February 2024, we entered into two separate agreements to sell substantially all of the Federal and Defense segment assets ("FDS Sale"). We have reported the results of operations for the Federal and Defense segment as discontinued operations for all periods presented.
Segment Operating Results Aviation Segment Results The results of operations for our Aviation segment were as follows (in thousands): Years ended December 31, 2023 2022 Change ($) Change (%) Revenues $ 544,020 $ 408,112 $ 135,908 33 % Costs and operating expenses 472,852 371,696 101,156 27 % Operating income $ 71,168 $ 36,416 $ 34,752 95 % Revenues.
Segment Operating Results Aviation Segment Results The results of operations for our Aviation segment were as follows (in thousands): Years ended December 31, 2024 2023 Change ($) Change (%) Revenues $ 786,256 $ 544,020 $ 242,236 45 % Costs and operating expenses 684,869 472,852 212,017 45 % Operating income $ 101,387 $ 71,168 $ 30,219 42 % Profit percentage 12.9 % 13.1 % Revenues.
Expense for allocated corporate costs was $7.8 million for 2023 and $7.5 million for 2022. Operating Income. Operating income increased $7.3 million, or 31%, in 2023 compared to 2022, primarily driven by increased revenues, a change in mix of products sold, and decreased amortization expense. Financial Condition There has been no material adverse change in our financial condition in 2023.
Expense for allocated corporate costs was $7.2 million for 2024 as compared to $7.8 million for 2023. Operating Income. Operating income decreased $14.2 million, or 46%, in 2024 compared to 2023, primarily driven by a shift in sales mix, the result of decreased revenues from our USPS vehicle fleet program, partially offset by decreased amortization expense and allocated corporate costs.
We estimate cash requirements for interest payments on our debt facilities to be approximately $32.1 million for 2024, $28.7 million for 2025, and $23.0 million for 2026. The estimates do not take into account future draw downs and repayments on the debt or changes in the variable interest rate, and actual interest may be different.
The estimates do not take into account future draw downs and repayments on the debt or changes in the variable interest rate, and actual interest may be different. The estimates included variable rate interest obligations estimated based on rates as of December 31, 2024. The interest payments are estimated through the maturity date of our term loan.
Results of Operations The following table summarizes our consolidated results of operations (in thousands): Years ended December 31, 2023 2022 Change ($) Change (%) Revenues $ 860,488 $ 669,448 $ 191,040 29 % Costs and operating expenses 772,492 615,844 156,648 25 % Operating income 87,996 53,604 34,392 64 % Interest expense, net 31,083 17,893 13,190 74 % Income from continuing operations before income taxes 56,913 35,711 21,202 59 % Provision for income taxes 13,761 9,052 4,709 52 % Net income from continuing operations $ 43,152 $ 26,659 $ 16,493 62 % Revenues.
Results of Operations The following table summarizes our consolidated results of operations (in thousands): Years ended December 31, 2024 2023 Change ($) Change (%) Revenues $ 1,080,132 $ 860,488 $ 219,644 26 % Costs and operating expenses 998,713 772,492 226,221 29 % Operating income 81,419 87,996 (6,577) (7) % Interest expense, net 34,939 31,083 3,856 12 % Income from continuing operations before income taxes 46,480 56,913 (10,433) (18) % Provision for income taxes 9,982 13,761 (3,779) (27) % Net income from continuing operations $ 36,498 $ 43,152 $ (6,654) (15) % Revenues.
Sales returns and allowances for vehicle parts are not significant. -24- Table of Contents Inventory Valuation Inventories are stated at the lower of cost or net realizable value using the first-in, first-out ("FIFO") method.
We have applied the practical expedient for our parts sales and MRO services to exclude the amount of remaining performance obligations for contracts with an original expected term of one year or less. Inventory Valuation Inventories are stated at the lower of cost or net realizable value using the first-in, first-out ("FIFO") method.
The expansion of our distribution services was driven by strong execution of new and existing programs. Our repair business experienced growth driven by increased market share in the commercial and B&GA sectors.
Our repair business's growth was driven by the expansion of new repair capabilities, market share gains in the commercial and business and general aviation ("B&GA") markets, improved throughput across our MRO facilities, and contributions from the TCI acquisition.
The operating income increase attributable to our segments was partially offset by an increase in corporate costs, including acquisition and integration costs incurred during the current period. Interest Expense. Interest expense increased approximately $13.2 million, or 74% in 2023 compared to 2022 primarily due to an increase in our debt facility borrowings and higher average interest rates on borrowings outstanding.
Interest expense increased approximately $3.9 million, or 12% in 2024 compared to 2023 primarily due to an increase in our average debt facility borrowings during the current period. Provision for Income Taxes. The effective tax rate for continued operations was 21.5% in 2024 compared to 24.2% in 2023.
Revenues increased $55.1 million, or 21%, in 2023 compared to 2022. The increase was primarily from commercial customers of $46.7 million, or 45%, and other government customers (primarily USPS) of $11.5 million, or 7%. Commercial customer revenue growth was driven by our commercial fleet and e-commerce fulfillment business.
Revenues from other government customers decreased primarily due to lower maintenance activity within the USPS vehicle fleet program driven by USPS' transition to a new FMIS. Commercial customer revenue growth was driven by our commercial fleet and e-commerce fulfillment business. Costs and Operating Expenses. Costs and operating expenses decreased $8.4 million, or 3%, primarily due to decreased revenues.
In July 2023, we completed an underwritten public offering of 2,846,250 shares of the Company's common stock, generating proceeds of $129.1 million in connection with the offering, net of issuance costs.
In May and October 2024, we completed underwritten public offerings of the Company's common stock, generating proceeds, net of issuance costs, of $162.0 million and $163.8 million, respectively.
The estimates included variable rate interest obligations estimated based on rates as of December 31, 2023. The interest payments are estimated through the maturity date of our term loan. Interest payments under our revolving facility have been excluded because a reasonable estimate of timing and amount of cash out flows cannot be determined.
Interest payments under our revolving facility have been excluded because a reasonable estimate of timing and amount of cash out flows cannot be determined. See Note (12) "Leases" to our Consolidated Financial Statements for information pertaining to future minimum lease payments relating to our operating lease obligations.
In February 2024, we entered into two separate agreements to sell substantially all of the Federal and Defense segment assets. See Note (18) "Subsequent Events" for further information. Acquisition of Turbine Controls, Inc. On February 29, 2024, we signed a definitive agreement to acquire Turbine Controls, Inc.
See Note (3) "Discontinued Operations" to our Consolidated Financial Statements for further information. Sale of Fleet Segment In February 2025, we entered into an agreement to sell the Fleet segment. See Note (19) "Subsequent Event" for further information. 2024 Acquisitions In April 2024, we completed the acquisition of Turbine Controls, Inc.
Business Trends The following discussion provides a brief description of some of the key business factors impacting our results of operations detailed by segment. -19- Table of Contents Aviation Segment Our Aviation segment has seen favorable results due to successful investments in growth initiatives, resulting in a 33% increase in annual revenue, totaling $544 million in 2023.
Business Trends The following discussion provides a brief description of some of the key business factors impacting our results of operations detailed by segment. -19- Table of Contents Aviation Segment Our strong program execution of new and existing distribution awards, our expanded portfolio of MRO capabilities and contributions from recent acquisitions resulted in record revenue of $786 million for the year ended December 31, 2024, a 45% increase year-over-year.
Investments in the Aviation segment are focused on businesses and programs that broaden our portfolio and reach new customers and geographies. The February 2023 acquisition of Precision Fuel expands our product offerings and customer base, offering strategic cross-selling opportunities and market share in niche B&GA related markets.
Investments in the Aviation segment are focused on businesses and programs that broaden our portfolio of products, expand our repair capabilities and reach new customers and geographies. The April 2024 acquisition of TCI strengthens our position in the commercial aviation engine MRO aftermarket, while providing additional opportunities for organic growth.