Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Cash flows from operating activities:
Net income	$ 127,594	$ 59,764	$ 35,839
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	11,923	10,291	8,913
Amortization of debt issuance costs	640	746	1,273
Amortization of original issue discount	17	25	436
Loss on extinguishment of debt	798	0	6,710
Amortization of intangibles	338	377	428
Gain on disposal of assets	(29)	(4)	0
Deferred income tax provision (benefit)	(30,323)	1,867	(1,731)
Deferred rent expense	1,920	1,369	1,873
Stock-based compensation expense	7,413	6,685	5,035
Excess tax benefit related to exercises of stock options	0	(9,559)	(1,068)
Changes in operating assets and liabilities:
Inventories	(45,078)	(19,499)	(20,736)
Accounts receivable	(970)	(118)	135
Prepaid expenses	(4,424)	(1,264)	(730)
Accounts payable	22,955	(1,822)	1,543
Income taxes payable	1,487	10,005	468
Accrued expenses and other liabilities	1,675	8,225	7,460
Net cash provided by operating activities	95,936	67,088	45,848
Cash flows from investing activities:
Purchases of property and equipment	(19,285)	(16,438)	(14,203)
Acquisition of intangible assets	0	0	(157)
Proceeds from sale of property and equipment	128	15	23
Net cash used in investing activities	(19,157)	(16,423)	(14,337)
Cash flows from financing activities:
Borrowings on revolving credit facility	1,142,888	946,683	858,053
Repayments on revolving credit facility	(1,142,888)	(946,683)	(858,053)
Borrowings on term loan	0	0	200,000
Repayments on term loan and capital leases	(146,422)	(5,104)	(324,076)
Proceeds from issuance of common stock, net of expenses	0	0	149,806
Proceeds from stock option exercises	10,413	13,304	2,271
Common shares withheld for taxes	(219)	0	0
Excess tax benefit related to exercises of stock options	0	9,559	1,068
Payment of debt issuance costs	0	0	(3,368)
Payment of dividend	0	0	(48,848)
Purchase of treasury stock	0	0	(57)
Net cash provided by (used in) financing activities	(136,228)	17,759	(23,204)
Net increase (decrease) in cash and cash equivalents	(59,449)	68,424	8,307
Cash and cash equivalents at the beginning of the period	98,683	30,259	21,952
Cash and cash equivalents at the end of the period	39,234	98,683	30,259
Cash paid during the period for:
Interest	3,806	5,179	13,829
Income taxes	31,949	24,859	22,824
Non-cash investing activities:
Accrued purchases of property and equipment	$ 1,925	$ 1,009	$ 402