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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 $ (55,042) $ (127,525) $ (90,947)
Adjustments to reconcile net loss to net cash provided by operating activities      
Depreciation and amortization 11,003 11,140 10,212
Stock-based compensation expense 102,150 98,765 70,660
Provision for doubtful accounts 39 410 156
(Accretion) amortization of premiums and discounts on marketable securities, net (11,829) (7,716) 1,079
Amortization of debt discount and issuance costs 2,436 1,730 1,298
Induced conversion expense 0 45,144 0
Realized loss on sale of available-for-sale securities, net 0 708 0
Deferred income tax (629) (14) 538
Changes in assets and liabilities:      
Accounts receivable (24,352) (18,318) (28,893)
Deferred costs (34,477) 277 (8,496)
Operating lease right-of-use asset 5,136 4,984 5,153
Other receivables 1,116 (2,176) (1,655)
Prepaid expenses and other 1,453 (5,023) (2,913)
Other assets (2,285) 2,230 (2,441)
Accounts payable 2,399 (1,002) 2,438
Deferred revenue 73,840 60,112 61,657
Operating lease liability (3,738) (4,133) (5,055)
Accrued expenses and other liabilities 20,486 11,282 (1,457)
Net cash provided by operating activities 87,706 70,875 11,334
Cash flows from investing activities      
Purchase of property and equipment (1,363) (2,124) (3,458)
Purchase of marketable securities (402,235) (573,304) (130,754)
Maturities of marketable securities 452,023 153,358 150,565
Sale of marketable securities 4,609 65,052 14,981
Acquisitions, net of cash acquired (98,092) 0 (99,186)
Purchase of intangible assets (191) (235) (160)
Net cash used in investing activities (45,249) (357,253) (68,012)
Cash flows from financing activities      
Proceeds from option exercises 4,909 4,472 3,273
Taxes paid related to net share settlements of stock-based compensation awards (11,458) (9,459) (12,541)
Proceeds from shares issued in connection with employee stock purchase plan 13,822 12,513 9,256
Proceeds from the issuance of convertible senior notes, net of issuance costs 0 691,113 0
Payments for repurchase of convertible senior notes 0 (396,869) 0
Principal payments on finance lease obligations (532) (505) (1,575)
Net cash provided by (used in) financing activities 6,741 301,265 (1,587)
Effect of foreign exchange rates on cash (3,569) 1,637 (1,924)
Net increase (decrease) in cash, cash equivalents, and restricted cash 45,629 16,524 (60,189)
Cash, cash equivalents, and restricted cash at beginning of year 256,721 240,197 300,386
Cash, cash equivalents, and restricted cash at end of year 302,350 256,721 240,197
Supplemental cash flow disclosure      
Cash paid for interest 10,278 4,710 4,742
Cash paid for income taxes, net of refunds 6,198 2,656 1,429
Noncash investing and financing activities      
Purchases of property and equipment, accrued but not paid 581 0 0
Reconciliation of cash, cash equivalents, and restricted cash to the consolidated balance sheets      
Cash and cash equivalents at end of year 301,835 256,100 240,197
Restricted cash included within prepaid expenses and other at end of year 515 621 0
Total cash, cash equivalents, and restricted cash at end of year shown in the consolidated statements of cash flows $ 302,350 $ 256,721 $ 240,197