Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Aug. 04, 2018	Jul. 29, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 92,101	$ (11,232)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	34,803	32,546
Lease impairment adjustment	(1,157)
Non-cash charges resulting from inventory step-up	380	1,860
Amortization of debt discount	17,645	15,018
Stock-based compensation expense	14,092	36,166
Loss on extinguishment of debt	917
Other non-cash interest expense	2,902	2,314
Change in assets and liabilities:
Accounts receivable	(9,350)	(617)
Merchandise inventories	(24,995)	140,331
Prepaid expense and other assets	(43,174)	35,287
Accounts payable and accrued expenses	(42,717)	29,874
Deferred revenue and customer deposits	20,800	30,349
Other current liabilities	9,895	2,269
Deferred rent and lease incentives	(81)	1,166
Other non-current obligations	(1,832)	(975)
Net cash provided by operating activities	70,229	314,356
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(61,212)	(56,697)
Proceeds from sale of assets held for sale—net		15,123
Purchase of investments		(16,109)
Maturities of investments		46,890
Sales of investments		145,020
Net cash provided by (used in) investing activities	(61,212)	134,227
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowing under promissory and equipment security notes		14,000
Repayments under promissory and equipment security notes	(31,974)	(117)
Proceeds from issuance of convertible senior notes	335,000
Proceeds from issuance of warrants	51,021
Purchase of convertible note hedges	(91,857)
Debt issuance costs		(7,939)
Repurchases of common stock—including commissions		(1,000,326)
Proceeds from exercise of stock options	29,209	11,170
Tax withholdings related to issuance of stock-based awards	(7,863)	(3,106)
Payments on build-to-suit lease transactions	(6,190)	(4,601)
Payments on capital leases	(290)	(158)
Net cash used in financing activities	(9,263)	(528,077)
Effects of foreign currency exchange rate translation	(124)	55
Net decrease in cash and cash equivalents and restricted cash equivalents	(370)	(79,439)
Cash and cash equivalents
Beginning of period—cash and cash equivalents	17,907	87,023
Beginning of period—restricted cash equivalents (construction related deposits)	7,407	28,044
Beginning of period—cash and cash equivalents and restricted cash equivalents	25,314	115,067
End of period—cash and cash equivalents	22,199	21,637
End of period—restricted cash equivalents (construction related deposits)	2,745	13,991
End of period—cash and cash equivalents and restricted cash equivalents	24,944	35,628
Non-cash transactions:
Property and equipment additions in accounts payable and accrued expenses at period-end	24,896	23,860
Property and equipment additions due to build-to-suit lease transactions	2,478	27,340
Property and equipment acquired under capital lease	1,191	753
Property and equipment additions from unpaid construction related deposits	517	5,848
Issuance of non-current notes payable related to share repurchases from former employees	243
Convertible Senior Notes [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Debt issuance costs	(6,349)
Asset Based Credit Facility [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowing	510,000	323,000
Repayments	(709,970)	(40,000)
Term Loan [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowing		$ 180,000
Repayments	$ (80,000)