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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Cash from operating activities |  |  |
Net income (loss) | $ 204,068 | $ 2,702 | $ (68,119)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization | 17,790 | 26,500 | 30,820
Amortization of operating lease right-of-use assets | 2,030 | 2,132 | 3,187
Impairment, net | 0 | 0 | 22,022
Gain on lease modification | 0 | (4,281) | 0
Deferred income taxes | (76,937) | (490) | (993)
Stock-based compensation, including as amortized | 62,081 | 54,852 | 43,234
Gain on sale of business | 0 | 0 | (4,156)
Other | (8,220) | (3,108) | 135
Changes in operating assets and liabilities: |  |  |
Accounts receivable | (3,383) | (4,206) | (4,198)
Prepaid expenses and other assets | 4,126 | (13,493) | (7,281)
Accounts payable | 1,559 | (1,565) | 1,176
Operating lease liabilities | (3,143) | (2,504) | (2,524)
Accrued expenses and other liabilities | (11,812) | 3,744 | 12,062
Net cash provided by operating activities | 188,159 | 60,283 | 25,365
Cash from investing activities |  |  |
Purchases of available-for-sale investments | (317,173) | (195,740) | (79,279)
Proceeds from sales of available-for-sale investments | 9,984 | 1,013 | 994
Proceeds from maturities of available-for-sale investments | 240,035 | 152,382 | 87,883
Purchases of property and equipment | (2,016) | (9,041) | (6,540)
Capitalization of software development costs | (5,170) | (4,825) | (14,688)
Proceeds from sale of business, net of cash divested | 0 | 0 | 5,124
Proceeds from equity-method investment | 0 | 629 | 40
Cash paid in business acquisition, net of cash acquired | (77,421) | 0 | 0
Net cash used in investing activities | (151,761) | (55,582) | (6,466)
Cash from financing activities |  |  |
Proceeds from stock option exercises | 3,924 | 2,595 | 4,474
Tax withholding for net share settlement | (47,327) | (28,556) | (10,637)
Net cash used in financing activities | (43,403) | (25,961) | (6,163)
Net (decrease) increase in cash, cash equivalents and restricted cash | (7,005) | (21,260) | 12,736
Beginning of period | 49,759 | 71,019 | 58,283
End of period | 42,754 | 49,759 | 71,019
Cash, cash equivalents and restricted cash |  |  |
Cash and cash equivalents | 42,504 | 49,509 | 70,769
Restricted cash included in prepaid expenses and other current assets | 250 | 250 | 250
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows | 42,754 | 49,759 | 71,019
Supplemental disclosure of cash flow information |  |  |
Cash paid for income taxes | 14,022 | 8,086 | 3,338
Cash paid for amounts included in the measurement of lease liabilities included in operating cash flows | $ 5,828 | $ 4,732 | $ 3,933

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