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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 Flows from Operating Activities |  |  |
Net loss | $ (78,800) | $ (183,949) | $ (193,381)
Adjustments to reconcile net loss to cash provided by operating activities: |  |  |
Depreciation and amortization expense | 127,722 | 135,820 | 102,335
Non-cash operating lease costs | 49,476 | 44,792 | 36,332
Amortization of deferred contract acquisition costs | 77,822 | 61,374 | 45,115
Stock-based compensation expense | 338,461 | 273,989 | 202,777
Amortization of debt issuance costs | 3,959 | 4,519 | 4,659
Net accretion of discounts and amortization of premiums on available-for-sale securities | (42,081) | (44,441) | (263)
Deferred income taxes | 2,111 | 2,264 | (140)
Provision for bad debt | 10,038 | 13,637 | 4,828
Loss on extinguishment of debt | 0 | 50,300 | 0
Other | 643 | 829 | 629
Changes in operating assets and liabilities, net of effect of asset acquisitions and business combinations: |  |  |
Accounts receivable, net | (78,523) | (113,361) | (56,195)
Contract assets | (5,527) | (2,749) | (2,213)
Deferred contract acquisition costs | (116,803) | (101,465) | (67,940)
Prepaid expenses and other current assets | (38,227) | (22,125) | (7,701)
Other noncurrent assets | 2,170 | 1,018 | (539)
Accounts payable | 18,626 | 11,781 | (9,605)
Accrued expenses and other current liabilities | 9,900 | 4,001 | 18,986
Accrued compensation | 18,742 | 21,787 | (24,349)
Operating lease liabilities | (55,248) | (40,046) | (31,691)
Deferred revenue | 135,008 | 134,473 | 102,204
Other noncurrent liabilities | 960 | 1,958 | (253)
Net cash provided by operating activities | 380,429 | 254,406 | 123,595
Cash Flows from Investing Activities |  |  |
Purchases of property and equipment | (185,037) | (114,396) | (143,606)
Capitalized internal-use software | (28,477) | (20,546) | (19,758)
Asset acquisitions and business combinations, net of cash acquired | (37,991) | (6,083) | (88,187)
Purchases of available-for-sale securities | (1,572,113) | (1,877,513) | (1,132,951)
Sales of available-for-sale securities | 0 | 20,248 | 0
Maturities of available-for-sale securities | 1,493,356 | 1,812,015 | 1,148,770
Other investing activities | 38 | 74 | 36
Net cash used in investing activities | (330,224) | (186,201) | (235,696)
Cash Flows from Financing Activities |  |  |
Repayments of convertible senior notes | 0 | (207,649) | (16,571)
Cash paid for issuance costs on revolving credit facility | (2,148) | 0 | 0
Proceeds from the exercise of stock options | 12,905 | 14,851 | 10,000
Proceeds from the early exercise of stock options | 6 | 0 | 113
Repurchases of unvested common stock | 0 | (34) | (3)
Proceeds from the issuance of common stock for employee stock purchase plan | 19,796 | 19,083 | 15,291
Payment of tax withholding obligation on RSU settlement | (16,774) | (7,953) | (2,483)
Payment of indemnity holdback | (1,000) | (10,483) | 0
Net cash provided by (used in) financing activities | 12,785 | (192,185) | 6,347
Net increase (decrease) in cash, cash equivalents, and restricted cash | 62,990 | (123,980) | (105,754)
Cash, cash equivalents, and restricted cash, beginning of period | 91,224 | 215,204 | 320,958
Cash, cash equivalents, and restricted cash, end of period | 154,214 | 91,224 | 215,204
Supplemental Disclosure of Cash Flow Information: |  |  |
Cash paid for interest | 75 | 670 | 1,238
Cash paid for income taxes, net of refunds | 4,995 | 4,454 | 2,223
Cash paid for operating lease liabilities | 51,387 | 40,747 | 28,881
Supplemental Disclosure of Non-cash Investing and Financing Activities: |  |  |
Stock-based compensation capitalized for software development | 10,839 | 6,641 | 5,452
Accounts payable and accrued expenses related to property and equipment additions | 57,241 | 26,423 | 28,979
Vesting of early exercised stock options | 109 | 1,761 | 2,862
Indemnity holdback consideration associated with asset acquisitions and business combinations | 6,523 | 1,000 | 10,483
Issuance of common stock related to an acquisition | 0 | 0 | 65,504
Operating lease right-of-use assets obtained in exchange for operating lease liabilities | $ 71,773 | $ 44,707 | $ 33,137

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