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CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Cash flows from operating activities: |  |  |
Net loss | $ (81,764) | $ (94,650) | $ (53,000)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |  |
Depreciation and amortization | 48,515 | 44,671 | 38,732
Amortization of operating lease right-of-use assets | 12,642 | 10,377 | 8,698
Amortization of deferred contract acquisition costs | 55,384 | 41,034 | 26,050
(Accretion of discount) amortization of premium on marketable investments | (11,351) | (90) | 6,385
Provision for credit losses | 989 | 1,105 | 808
Stock-based compensation | 206,292 | 172,507 | 108,805
Amortization of discount and issuance costs on convertible senior notes | 3,749 | 3,743 | 3,957
Deferred taxes | 53 | 3,088 | (6,907)
Change in fair value of contingent consideration | 0 | 260 | 5,640
Payment of contingent consideration liability in excess of acquisition-date fair value | 0 | (5,900) | 0
Other | 807 | 188 | 396
Changes in operating assets and liabilities: |  |  |
Accounts receivable | (9,844) | (4,899) | (35,986)
Prepaid expenses and other current assets | (3,532) | 661 | (14,193)
Deferred contract acquisition costs | (91,544) | (85,197) | (71,380)
Other assets | (3,988) | (319) | (1,216)
Accounts payable | 2,932 | 845 | 4,305
Accrued and other current liabilities | (9,274) | (7,878) | 20,045
Deferred revenue | 4,958 | 13,176 | 10,462
Other long-term liabilities (including non-current portions of operating and finance lease liabilities) | 3,814 | (3,857) | (22,603)
Net cash provided by operating activities | 128,838 | 88,865 | 28,998
Cash flows from investing activities: |  |  |
Purchases of marketable investments | (795,002) | (435,768) | (680,490)
Proceeds from sales of marketable investments | 1,211 | 600 | 44,288
Proceeds from maturities of marketable investments | 655,588 | 524,568 | 527,940
Purchases of property and equipment | (31,234) | (52,272) | (42,216)
Capitalization of internal-use software development costs | (9,537) | (3,899) | 0
Payments of initial direct costs | 0 | (266) | 0
Cash paid for an equity investment in a privately-held company | 0 | (2,000) | 0
Cash paid to acquire Aceyus, Inc. | (80,588) | 0 | 0
Net cash (used in) provided by investing activities | (259,562) | 30,963 | (150,478)
Cash flows from financing activities: |  |  |
Repurchase of a portion of 2023 convertible senior notes, net of costs | 0 | (34,067) | (24,688)
Repayment of outstanding 2023 convertible senior notes at maturity | (169) | 0 | 0
Cash received from the settlement at maturity of the outstanding capped calls associated with the 2023 convertible senior notes | 74,453 | 0 | 0
Proceeds from exercise of common stock options | 9,127 | 8,522 | 7,402
Proceeds from sale of common stock under ESPP | 15,927 | 13,413 | 15,397
Payment of employee taxes related to vested RSUs | (3,270) | 0 | 0
Payment of contingent consideration liability up to acquisition-date fair value | 0 | (18,100) | 0
Payment of holdbacks related to acquisitions | (500) | 0 | (5,000)
Payments of finance leases | (989) | 0 | (612)
Net cash provided by (used in) financing activities | 94,579 | (30,232) | (7,501)
Net (decrease) increase in cash and cash equivalents | (36,145) | 89,596 | (128,981)
Cash and cash equivalents: |  |  |
Beginning of year | 180,987 | 91,391 | 220,372
End of year | 144,842 | 180,987 | 91,391
Supplemental disclosures of cash flow data: |  |  |
Cash paid for interest | 3,897 | 3,744 | 4,073
Cash paid for income taxes | 1,589 | 1,033 | 31
Non-cash investing and financing activities: |  |  |
Equipment purchased and unpaid at period-end | 11,243 | 12,332 | 13,871
Capitalization of leasehold improvement through non-cash lease incentive | 0 | 109 | 5,121
Stock-based compensation included in capitalized software development costs | 4,085 | 1,711 | 0
Reconciliation of Cash, Cash Equivalents and Restricted Cash to the Consolidated Balance Sheets - Beginning of Period and End of Period: |  |  |
Cash and cash equivalents | 143,201 | 180,520 | 90,878
Restricted cash in other assets | 1,641 | 467 | 513
Total cash, cash equivalents and restricted cash | $ 144,842 | $ 180,987 | $ 91,391

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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-8 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-4 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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