Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (180,431)	$ (66,507)	$ (27,198)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	33,540	36,955	42,641
Amortization of debt discount and issuance costs	14,391	13,617	12,886
Amortization of contract costs	14,456	11,442	9,892
Stock-based compensation	137,011	115,009	101,817
Changes to allowance for credit losses and revenue reserves	2,597	226	367
Deferred income tax	(54,115)	(35,789)	(11,859)
Amortization of premium (accretion of discount) on available-for-sale securities, net	5,498	6,567	(1,882)
Changes in fair value of strategic investments	(1,545)	0	10,672
Other non-cash items affecting net income (loss)	63	863	739
Changes in operating assets and liabilities:
Accounts receivable	(42,545)	10,820	23,878
Unbilled accounts receivable	18,106	(19,194)	(38,125)
Prepaid expenses and other assets	(23,390)	(16,764)	(18,564)
Operating lease assets	7,160	6,350	(10,784)
Accounts payable	13,580	3,627	(1,209)
Accrued employee compensation	(8,942)	41,526	(15,624)
Deferred revenue	31,564	12,940	1,165
Lease liabilities	(9,637)	(3,346)	18,678
Other liabilities	4,699	(6,755)	15,576
Net cash provided by (used in) operating activities	(37,940)	111,587	113,066
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of available-for-sale securities	(519,536)	(1,033,095)	(1,280,755)
Sales of available-for-sale securities	74,552	123,234	134,050
Maturities of available-for-sale securities	834,362	1,005,290	1,168,720
Purchases of property and equipment	(9,510)	(19,008)	(21,377)
Capitalized software development costs	(12,266)	(9,846)	(4,283)
Acquisition of strategic investments	(11,560)	(2,384)	(2,156)
Acquisition of business, net of acquired cash	(43,830)	0	0
Net cash provided by (used in) investing activities	312,212	64,191	(5,801)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock upon exercise of stock options	116	1,932	4,955
Repurchase and retirement of common stock	(37,451)	(161,319)	0
Net cash provided by (used in) financing activities	(37,335)	(159,387)	4,955
Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash	(7,161)	1,550	648
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	229,776	17,941	112,868
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—Beginning of period	384,910	366,969	254,101
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—End of period	614,686	384,910	366,969
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest	5,000	5,000	5,000
Cash paid for income taxes, net of tax refunds	4,323	4,155	4,888
Accruals for purchase of property and equipment	1,114	1,676	343
Accruals for capitalized cloud software development costs	1,250	845	406
Accrual for shares repurchased	$ 0	$ 1,230	$ 0