Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 1,919	$ (4,035)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	51,092	41,248
Non-cash charges resulting from inventory step-up	2,108	5,187
Amortization of debt discount	22,685	21,467
Excess tax shortfall from exercise of stock options		2,275
Stock-based compensation expense	42,929	21,711
Non-cash loss on extinguishment of debt	1,880
Other non-cash interest expense	4,914	2,971
Change in assets and liabilities—net of acquisition:
Accounts receivable	(319)	(1,445)
Merchandise inventories	190,620	(23,261)
Prepaid expense and other assets	38,419	(30,378)
Accounts payable and accrued expenses	10,491	(63,435)
Deferred revenue and customer deposits	20,617	22,652
Other current liabilities	448	(25,372)
Deferred rent and lease incentives	846	2,953
Other non-current obligations	(1,887)	8,477
Net cash provided by (used in) operating activities	386,762	(18,985)
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(76,789)	(104,152)
Construction related deposits	(12,772)	(3,829)
Purchase of trademarks and domain names	(39)	(164)
Proceeds from sale of assets held for sale—net	15,123
Purchase of investments	(16,109)	(186,967)
Maturities of investments	46,890	115,938
Sales of investments	145,020	31,896
Acquisition of business—net of cash acquired		(116,100)
Net cash provided by (used in) investing activities	101,324	(263,378)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowing under promissory and equipment security notes	34,000
Repayments under promissory and equipment security notes	(841)
Debt issuance costs	(8,298)
Repurchases of common stock—including commissions	(1,000,326)
Payments on build-to-suit lease transactions	(8,734)
Proceeds from exercise of stock options	15,369	1,591
Excess tax shortfall from exercise of stock options		(2,275)
Tax withholdings related to issuance of stock-based awards	(4,881)	(1,365)
Payments on capital leases	(258)	(262)
Net cash used in financing activities	(552,969)	(2,311)
Effects of foreign currency exchange rate translation	22	342
Net decrease in cash and cash equivalents	(64,861)	(284,332)
Cash and cash equivalents
Beginning of period	87,023	331,467
End of period	22,162	47,135
Non-cash transactions:
Property and equipment additions due to build-to-suit lease transactions	35,463	46,193
Property and equipment additions from use of construction related deposits	27,077	3,965
Property and equipment additions in accounts payable and accrued expenses at period-end	24,081	$ 23,440
Property and equipment acquired under capital lease	753
Asset Based Credit Facility [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowing	446,000
Repayments	(105,000)
Term Loan [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowing	180,000
Repayments	$ (100,000)