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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Operating Activities |  |
Net income | $ 107,866 | $ 128,720
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation of flight equipment | 277,260 | 259,680
Stock-based compensation expense | 8,275 | 5,896
Deferred taxes | 26,687 | 28,726
Amortization of discounts and debt issuance costs | 13,108 | 13,073
Amortization of prepaid lease costs | 24,336 | 18,323
Gain on aircraft sales, trading and other activity | (51,346) | (41,650)
Changes in operating assets and liabilities: |  |
Other assets | (16,829) | (26,907)
Accrued interest and other payables | (12,438) | (45,493)
Rentals received in advance | (5,589) | 8,122
Net cash provided by operating activities | 371,330 | 348,490
Investing Activities |  |
Acquisition of flight equipment under operating lease | (706,179) | (1,236,828)
Payments for deposits on flight equipment purchases | 0 | (4,000)
Proceeds from aircraft sales, trading and other activity | 200,401 | 21,391
Acquisition of aircraft furnishings, equipment and other assets | (124,546) | (53,939)
Net cash used in investing activities | (630,324) | (1,273,376)
Financing Activities |  |
Cash dividends paid on Class A common stock | (23,316) | (22,178)
Cash dividends paid on preferred stock | (10,425) | (10,425)
Tax withholdings on stock-based compensation | (9,384) | (3,229)
Net change in unsecured revolving facility | 353,000 | 653,000
Proceeds from debt financings | 1,428,212 | 1,352,766
Payments in reduction of debt financings | (1,476,877) | (1,209,971)
Debt issuance costs | (1,694) | (3,159)
Security deposits and maintenance reserve receipts | 93,464 | 93,377
Security deposits and maintenance reserve disbursements | (2,553) | (3,775)
Net cash provided by financing activities | 350,427 | 846,406
Net increase/(decrease) in cash | 91,433 | (78,480)
Cash, cash equivalents and restricted cash at beginning of period | 464,492 | 780,017
Cash, cash equivalents and restricted cash at end of period | 555,925 | 701,537
Supplemental Disclosure of Cash Flow Information |  |
Cash paid during the period for interest, including capitalized interest of $11,412 and $10,658 at March 31, 2024 and 2023, respectively | 203,581 | 197,935
Cash paid for income taxes | 3,033 | 3,571
Supplemental Disclosure of Noncash Activities |  |
Buyer furnished equipment, capitalized interest and deposits on flight equipment purchases applied to acquisition of flight equipment and other assets | 155,214 | 227,738
Flight equipment subject to operating leases reclassified to flight equipment held for sale | 276,094 | 80,036
Flight equipment subject to operating leases reclassified to investment in sales-type lease | 33,629 | 0
Cash dividends declared on Class A common stock, not yet paid | $ 23,387 | $ 22,203

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