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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jan. 31, 2020 | Jan. 31, 2019
Cash flows from operating activities: |  |  |
Net loss |  | $ (446,864) | $ (217,028)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization |  | 45,540 | 35,005
Stock-based compensation |  | 167,041 | 138,490
Change in fair value of contingent consideration |  | 0 | (795)
Amortization of debt discount and issuance costs |  | 15,398 | 14,415
Operating lease cost, net of accretion |  | 14,539 | 0
Impairment of lease-related assets |  | 3,002 | 0
Other |  | (236) | (1,121)
Changes in operating assets and liabilities: |  |  |
Accounts receivable, net |  | (1,848) | 13,579
Deferred commissions |  | (35,422) | (15,655)
Prepaid expenses and other assets |  | 9,064 | (16,495)
Accounts payable |  | (3,428) | 7,554
Accrued compensation and benefits |  | 20,085 | 1,062
Accrued expenses and other liabilities |  | 974 | (19,029)
Operating leases, net |  | (13,039) | 0
Deferred revenue |  | 146,540 | 148,332
Net cash provided by operating activities |  | (78,654) | 88,314
Cash flows from investing activities: |  |  |
Maturities of investments |  | 299,380 | 297,596
Purchases of investments |  | (416,636) | (167,066)
Sales of investments |  | 24,147 | 0
Purchases of property and equipment |  | (39,451) | (72,383)
Payments for business combinations, net of cash and restricted cash acquired |  | 0 | (18,662)
Net cash provided by (used in) investing activities |  | (132,560) | 39,485
Cash flows from financing activities: |  |  |
Proceeds from sales of shares through employee equity incentive plans, net of repurchases |  | 26,486 | 33,364
Payment of debt in conjunction with business combinations |  | 0 | (991)
Payment of issuance costs related to convertible senior notes |  | 0 | (75)
Net cash provided by financing activities |  | 26,486 | 32,298
Net increase (decrease) in cash, cash equivalents and restricted cash |  | (184,728) | 160,097
Cash, cash equivalents and restricted cash—beginning of period |  | 399,520 | 307,098
Cash, cash equivalents and restricted cash—end of period |  | 214,792 | 467,195
Restricted cash | [1] | 3,099 | 1,185
Cash and cash equivalents—end of period |  | 211,693 | 466,010
Supplemental disclosures of cash flow information: |  |  |
Cash paid for income taxes |  | 11,195 | 24,023
Supplemental disclosures of non-cash investing and financing information: |  |  |
Issuance of common stock in connection with business combinations |  | 0 | 102,978
Purchases of property and equipment included in accounts payable and accrued liabilities |  | 13,997 | 9,026
Vesting of early exercised stock options |  | $ 0 | $ 120
[1] | Included within other assets—non-current in the condensed consolidated balance sheets.

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from the stock plan during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash outflow from the repayments of a long-term debt originally issued by another party but is assumed by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of cash 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition The fair value of stock issued in noncash financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 + Details
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