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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Cash flows from operating activities |  |  |  |
Net loss | $ (19,400) | $ (17,548) | $ (40,771) | $ (29,235)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities |  |  |  |
Depreciation and amortization | 2,949 | 2,564 | 5,842 | 5,086
Stock-based compensation expense | 28,467 | 25,402 | 56,355 | 48,409
(Recovery of) provision for doubtful accounts | (357) | 20 | (345) | (103)
Accretion of premiums and discounts on marketable securities, net | (1,390) | (3,156) | (3,085) | (6,905)
Amortization of debt discount and issuance costs | 611 | 609 | 1,221 | 1,217
Deferred income tax | (13) | 4 | (77) | (291)
Changes in assets and liabilities: |  |  |  |
Accounts receivable | (504) | (33,267) | 30,132 | 3,680
Deferred costs | (12) | (11,599) | 4,081 | (10,194)
Operating lease right-of-use assets | 1,377 | 1,172 | 2,706 | 2,598
Other receivables | (59) | 4,347 | 935 | 4,541
Prepaid expenses and other | 3,191 | 4,693 | (2,462) | 2,420
Other assets | 1,386 | (565) | 738 | (1,655)
Accounts payable | (3,755) | (1,884) | 2,896 | 2,842
Deferred revenue | 15,424 | 13,079 | (3,014) | (4,447)
Operating lease liabilities | (1,087) | (966) | (1,918) | (1,953)
Accrued expenses and other liabilities | 23,483 | 17,081 | (10,281) | 8,820
Net cash provided by (used in) operating activities | 50,311 | (14) | 42,953 | 24,830
Cash flows from investing activities |  |  |  |
Purchase of property and equipment | (995) | (108) | (1,758) | (311)
Purchase of marketable securities | (102,985) | (34,986) | (205,950) | (151,553)
Maturities of marketable securities | 99,738 | 107,100 | 194,352 | 236,740
Sale of marketable securities | 0 | 0 | 0 | 4,609
Acquisitions, net of cash acquired | 0 | (98,280) | 0 | (98,280)
Purchase of intangible assets | (41) | (41) | (60) | (72)
Net cash used in investing activities | (4,283) | (26,315) | (13,416) | (8,867)
Cash flows from financing activities |  |  |  |
Proceeds from option exercises | 1,803 | 290 | 2,434 | 592
Taxes paid related to net share settlements of stock-based compensation awards | (569) | (1,640) | (13,491) | (10,251)
Proceeds from shares issued in connection with employee stock purchase plan | 0 | 0 | 7,535 | 7,113
Repurchases of Class A common stock | (10,002) | 0 | (50,120) | 0
Principal payments on finance lease obligations | (139) | (132) | (277) | (261)
Net cash used in financing activities | (8,907) | (1,482) | (53,919) | (2,807)
Effect of foreign exchange rates on cash | 5,108 | (358) | 6,997 | (1,465)
Net increase (decrease) in cash, cash equivalents, and restricted cash | 42,229 | (28,169) | (17,385) | 11,691
Cash, cash equivalents, and restricted cash at beginning of period | 242,736 | 296,581 | 302,350 | 256,721
Cash, cash equivalents, and restricted cash at end of period | 284,965 | 268,412 | 284,965 | 268,412
Supplemental cash flow disclosure |  |  |  |
Cash paid for interest | 189 | 197 | 5,168 | 5,102
Cash paid for income taxes, net of refunds | 2,481 | 2,181 | 5,510 | 3,133
Reconciliation of cash, cash equivalents, and restricted cash to the consolidated balance sheets |  |  |  |
Cash and cash equivalents at end of period | 284,253 | 267,897 | 284,253 | 267,897
Restricted cash included within prepaid expenses and other at end of period | 712 | 515 | 712 | 515
Total cash, cash equivalents, and restricted cash at end of period shown in the consolidated statements of cash flows | $ 284,965 | $ 268,412 | $ 284,965 | $ 268,412

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Period Type: | duration

X
- Definition Increase (Decrease) In Operating Right-Of-Use Asset + References No definition available. + Details
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Namespace Prefix: | wk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration