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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Cash flows from operating activities |  |  |
Net income | $ 147,582 | $ 112,818 | $ 154,783
Adjustments to reconcile net income to net cash provided by operating activities |  |  |
Depreciation and amortization | 10,265 | 10,283 | 5,040
Deferred income taxes | (8,593) | 13,226 | (41,247)
Stock-based compensation, net of amounts capitalized | 51,076 | 47,834 | 31,442
Non-cash lease expense | 2,074 | 2,027 | 1,159
Amortization of premium (accretion of discount) on marketable securities, net | (5,238) | 3,115 | 4,332
Net loss on sale of marketable securities | 402 | 1,093 | 1,231
Amortization of deferred contract costs | 8,871 | 8,785 | 9,755
Change in fair value of contingent earn-out consideration liability | 951 | 728 | 0
Other | 1,230 | 726 | 410
Changes in operating assets and liabilities, net of effect of acquisition: |  |  |
Accounts receivable | 3,993 | (26,242) | (31,017)
Prepaid expenses and other assets | (20,483) | (3,448) | (9,089)
Deferred contract costs | (8,608) | (8,462) | (9,609)
Accounts payable, accrued expenses and other liabilities | 8,332 | (195) | 8,664
Deferred revenue | (6,080) | 17,527 | 1,828
Operating lease liabilities | (1,678) | (213) | (1,107)
Net cash provided by operating activities | 184,096 | 179,602 | 126,575
Cash flows from investing activities |  |  |
Cash paid for acquisition | 0 | (53,500) | 0
Purchases of property and equipment | (147) | (1,701) | (1,912)
Internal-use software development costs | (5,654) | (4,483) | (3,785)
Purchases of marketable securities | (472,867) | (190,560) | (1,317,193)
Maturities of marketable securities | 435,179 | 83,139 | 47,919
Sales of marketable securities | 74,675 | 107,182 | 633,802
Other | 0 | 0 | 595
Net cash provided by (used in) investing activities | 31,186 | (59,923) | (640,574)
Cash flows from financing activities |  |  |
Proceeds from issuance of common stock upon initial public offering after deducting underwriting discounts and commissions | 0 | 0 | 553,905
Proceeds from issuance of common stock upon exercise of stock options and common stock warrants | 12,892 | 9,926 | 12,612
Proceeds from issuance of common stock in connection with the employee stock purchase plan | 3,446 | 4,759 | 1,395
Taxes paid related to net share settlement of equity awards | (6,756) | (3,822) | (817)
Repurchase of common stock | (280,716) | (85,324) | (2,698)
Payment of contingent consideration related to a business combination | (5,390) | 0 | 0
Payments of deferred offering costs | 0 | 0 | (3,982)
Net cash provided by (used in) financing activities | (276,524) | (74,461) | 560,415
Net increase (decrease) in cash and cash equivalents | (61,242) | 45,218 | 46,416
Cash and cash equivalents, beginning of period | 158,027 | 112,809 | 66,393
Cash and cash equivalents, end of period | 96,785 | 158,027 | 112,809
Supplemental disclosures of cash flow information |  |  |
Cash paid for taxes, net of refunds | 51,274 | 5,231 | 206
Non-cash financing and investing activities |  |  |
Conversion of redeemable convertible preferred stock to common stock | 0 | 0 | 81,458
Fair value of contingent earn-out consideration included in purchase consideration | 0 | 21,134 | 0
Operating lease right-of-use assets obtained in exchange for operating lease liabilities | 587 | 14,759 | 1,151
Repurchase included in accrued expenses | 4,000 | 748 | 0
Excise tax payable on share repurchases | $ 1,493 | $ 0 | $ 0

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