Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Apr. 29, 2023	Apr. 30, 2022
Cash Flows from Operating Activities
Net loss	$ (143,314)	$ (110,779)
Adjustments to reconcile net loss to net cash provided by operating activities:
Change in inventory reserves	(12,152)	2,301
Stock-based compensation expense	80,217	96,305
Depreciation, amortization, and accretion	32,275	27,185
Asset impairment	16,874	0
Other	1,517	52
Change in operating assets and liabilities:
Inventory	58,080	(3,922)
Prepaid expenses and other assets	10,070	(11,386)
Income tax receivables	26,640	1,069
Operating lease right-of-use assets and liabilities	(1,333)	4,492
Accounts payable	(18,700)	72,966
Accrued liabilities	(15,513)	15,058
Deferred revenue	(883)	(916)
Gift card liability	347	1,190
Other liabilities	2,617	840
Net cash provided by operating activities	36,742	94,455
Cash Flows from Investing Activities
Proceeds from sale of property and equipment	842	0
Purchases of property and equipment	(15,624)	(38,681)
Purchases of securities available-for-sale	(258)	(92,453)
Sales of securities available-for-sale	6,524	5,812
Maturities of securities available-for-sale	44,056	98,308
Net cash provided by (used in) investing activities	35,540	(27,014)
Cash Flows from Financing Activities
Proceeds from the exercise of stock options, net	155	1,513
Payments for tax withholdings related to vesting of restricted stock units	(10,717)	(27,915)
Repurchase of common stock	0	(30,042)
Other	(117)	0
Net cash used in financing activities	(10,679)	(56,444)
Net increase in cash and cash equivalents	61,603	10,997
Effect of exchange rate changes on cash and cash equivalents	1,037	(3,061)
Cash and cash equivalents at beginning of period	130,935	129,785
Cash and cash equivalents at end of period	193,575	137,721
Supplemental Disclosure
Cash paid for income taxes	787	558
Supplemental Disclosure of Non-Cash Investing and Financing Activities:
Purchases of property and equipment included in accounts payable and accrued liabilities	1,577	3,011
Capitalized stock-based compensation	$ 4,774	$ 5,662