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v3.24.0.1

Consolidated statements of cash flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Operating activities |  |  |
Net income (loss) | $ (35,610) | $ (96,047) | $ 316,438
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization | 21,509 | 46,489 | 27,500
Share-based compensation | 647,860 | 497,123 | 415,382
Non-cash charitable contributions | 12,890 | 0 | 45,300
Impairment and abandonment charges for leases and leasehold improvements | 117,315 | 0 | 0
Amortization (accretion) of investment premiums discount | (21,897) | (638) | 5,908
Other | (2,438) | (13,251) | 3,699
Changes in assets and liabilities: |  |  |
Accounts receivable | (80,782) | (28,856) | (88,862)
Prepaid expenses and other assets | 18,102 | (30,214) | (14,727)
Operating lease right-of-use assets | 55,324 | 56,024 | 43,995
Accounts payable | (9,261) | 70,777 | (33,451)
Accrued expenses and other liabilities | (43,544) | 20,627 | 82,435
Operating lease liabilities | (66,507) | (52,832) | (50,710)
Net cash provided by operating activities | 612,961 | 469,202 | 752,907
Investing activities |  |  |
Purchases of property and equipment and intangible assets | (8,063) | (28,984) | (9,031)
Purchases of marketable securities | (1,308,020) | (1,028,480) | (1,104,087)
Sales of marketable securities | 35,850 | 7,417 | 274,654
Maturities of marketable securities | 1,243,240 | 1,007,861 | 849,520
Acquisition of business, net of cash acquired | 0 | (86,059) | (36,914)
Net cash used in investing activities | (36,993) | (128,245) | (25,858)
Financing activities |  |  |
Proceeds from exercise of stock options, net | 8,256 | 12,882 | 23,912
Repurchases of Class A common stock | (500,000) | 0 | 0
Shares repurchased for tax withholdings on release of restricted stock units and restricted stock awards | (335,019) | (161,809) | 0
Payment of deferred offering costs and other financing activities | 0 | 0 | (1,750)
Net cash (used in) provided by financing activities | (826,763) | (148,927) | 22,162
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 1,667 | (1,434) | (1,058)
Net increase in cash, cash equivalents and restricted cash | (249,128) | 190,596 | 748,153
Cash, cash equivalents and restricted cash, beginning of period | 1,617,660 | 1,427,064 | 678,911
Cash, cash equivalents and restricted cash, end of period | 1,368,532 | 1,617,660 | 1,427,064
Supplemental cash flow information |  |  |
Cash paid for income taxes, net | 19,173 | 10,008 | 1,494
Non-cash investing and financing activities: |  |  |
Operating lease right-of-use assets obtained in exchange for operating lease liabilities | $ 32,784 | $ 31,515 | $ 118,977

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