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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income | $ 421,362 | $ 445,053 | $ 361,573
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Deferred taxes | 25,756 | (18,642) | (39,495)
Depreciation and amortization | 145,034 | 142,401 | 125,793
Stock-based compensation | 173,703 | 154,026 | 133,367
Non-cash operating lease cost | 38,438 | 33,107 | 30,520
Impairments and fair value adjustments for equity investments | (5,885) | 4,990 | 0
Other non-cash operating activities | 12,256 | 32,733 | 41,288
Changes in assets and liabilities, net of effects of acquisitions: |  |  |
Accounts receivable | (153,487) | (104,614) | 21,549
Inventories | 25,053 | 30,169 | (130,097)
Prepaid expenses and other assets | 67,527 | (51,013) | (65,514)
Accounts payable | (843) | (7,703) | (36,523)
Accrued and other long-term liabilities | 89,705 | 46,327 | (121,942)
Long-term income tax payable | (20,279) | (7,772) | 6,327
Deferred revenues | (80,109) | 86,714 | 241,886
Net cash provided by operating activities | 738,231 | 785,776 | 568,732
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Acquisitions, net of cash acquired | (77,075) | 0 | (12,304)
Purchase of property, plant and equipment | (115,580) | (177,716) | (291,900)
Purchase of marketable securities | 0 | (2,910) | (28,002)
Proceeds from maturities of marketable securities | 25,660 | 55,170 | 23,785
Proceeds from sales of marketable securities | 18,193 | 6,234 | 97,316
Purchase of equity investments | (106,345) | (76,999) | 0
Other investing activities | 235 | 278 | (2,211)
Net cash used in investing activities | (254,912) | (195,943) | (213,316)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from issuance of common stock | 25,281 | 26,595 | 26,149
Common stock repurchases | (352,878) | (592,360) | (435,036)
Activity for equity forward contracts related to accelerated stock repurchase agreements, net | 0 | (10,000) | (40,000)
Payroll taxes paid upon the vesting of equity awards | (28,125) | (22,575) | (52,799)
Net cash used in financing activities | (355,722) | (598,340) | (501,686)
Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash | (21,153) | 4,671 | (11,514)
Net (decrease) increase in cash, cash equivalents, and restricted cash | 106,444 | (3,836) | (157,784)
Cash, cash equivalents, and restricted cash at beginning of year | 938,519 | 942,355 | 1,100,139
Cash, cash equivalents, and restricted cash at end of year | $ 1,044,963 | $ 938,519 | $ 942,355

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