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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Cash flows from operating activities: |  |  |
Net loss | $ (172,368) | $ (88,739) | $ (104,497)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities: |  |  |
Depreciation | 9,360 | 8,748 | 8,171
Amortization of intangibles | 8,842 | 6,175 | 5,033
Impairment of goodwill and long-lived assets | 0 | 0 | 9,469
Amortization of capitalized software | 19,025 | 9,748 | 2,513
Amortization of debt discount and issuance costs | 14,045 | 1,355 | 0
Amortization of deferred sales commission costs | 19,541 | 14,204 | 0
Provision for doubtful accounts | 3,479 | 1,115 | 839
Operating lease expense, net of accretion | 14,971 |  |
Non-cash lease expense | 0 | 4,802 | 0
Stock-based compensation expense | 70,878 | 44,508 | 29,176
Deferred income tax expense | 0 | 0 | 66,273
Gain on escrow settlement | 0 | 0 | (1,393)
Other | 3,522 | 178 | (162)
Changes in assets and liabilities: |  |  |
Accounts receivable | (12,737) | (5,393) | (2,402)
Deferred sales commission costs | (46,421) | (25,286) | 0
Other current and non-current assets | (33,137) | (4,337) | (3,149)
Accounts payable and accruals | 2,159 | 17,252 | 11,860
Deferred revenue | 4,936 | 802 | 310
Net cash (used in) provided by operating activities | (93,905) | (14,868) | 22,041
Cash flows from investing activities: |  |  |
Purchases of property and equipment | (35,834) | (9,096) | (9,178)
Cost of capitalized software | (31,573) | (25,622) | (12,486)
Proceeds from escrow settlement | 0 | 0 | 1,393
Purchases of investments | (42,223) | (54,127) | (115,224)
Sales of investments | 36,515 | 54,642 | 27,841
Proceeds from maturities of investments | 25,950 | 50,700 | 100,382
Acquisition of businesses, net of cash acquired | (59,129) | (5,625) | 0
Net cash (used in) provided by investing activities | (106,294) | 10,872 | (7,272)
Cash flows from financing activities: |  |  |
Finance lease payments | (315) |  |
Finance lease payments |  | (949) | (1,079)
Payment of contingent consideration | 0 | 0 | (150)
Repurchase of common stock, including for withholding taxes | (6,550) | (7,823) | (22,440)
Proceeds from issuance of common stock under employee stock plans | 14,330 | 12,202 | 7,229
Purchases of capped calls | (9,288) | (33,724) | 0
Net proceeds from issuance of convertible senior notes | 73,918 | 279,532 | 0
Net cash provided by (used in) financing activities | 72,095 | 249,238 | (16,440)
Effect of exchange rate changes on cash | (168) | (362) | 444
Net increase (decrease) in cash, cash equivalents and restricted cash | (128,272) | 244,880 | (1,227)
Cash, cash equivalents and restricted cash, beginning of year | 284,683 | 39,803 | 41,030
Cash, cash equivalents and restricted cash, end of year | 156,411 | 284,683 | 39,803
Supplemental and non-cash disclosures: |  |  |
Right-of-use assets obtained in exchange for new and modified operating lease liabilities | 79,100 |  |
Interest paid | 1,553 | 0 | 36
Income taxes paid | 934 | 356 | 38
Equipment acquired under capital leases | 0 | 68 | 765
Reconciliation Of Cash, Cash Equivalents And Restricted Cash [Abstract] |  |  |
Total cash, cash equivalents and restricted cash | $ 284,683 | $ 39,803 | $ 39,803

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