Significant Accounting Policies Accounting Changes (Details) - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May. 02, 2015	Jan. 31, 2015	Nov. 01, 2014	Aug. 02, 2014	May. 03, 2014	Feb. 01, 2014	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Interest income, net	$ 838	$ 952	$ 752	$ 920	$ 734	$ 737	$ 659	$ 991		$ 3,462	$ 3,121	$ 2,437
Income Tax Expense (Benefit)	6,649	$ 25,575	$ 22,486	$ 29,096	19,860	$ 32,069	$ 20,860	$ 23,603		83,806	96,392	92,559
Assets, Current	$ (795,668)				(748,723)					$ (795,668)	(748,723)
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Expenses					(128,681)				$ (115,113)		(512,889)	(497,899)
Interest income, net					602				762		2,795	2,619
Income Tax Expense (Benefit)					(19,527)				(17,521)		(95,713)	(92,705)
Deferred Income Taxes and Other Assets, Current					19,747						19,747
Assets, Current					768,470						768,470
Deferred Income Taxes and Other Assets, Noncurrent					11,332						11,332
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Expenses					(128,480)				(115,113)		(512,536)	(497,863)
Interest income, net					734				804		3,121	2,437
Income Tax Expense (Benefit)					(19,860)				(17,563)		(96,392)	(92,559)
Deferred Income Taxes and Other Assets, Current					0						0
Assets, Current					748,723						748,723
Deferred Income Taxes and Other Assets, Noncurrent					31,079						31,079
Unrecognized Tax Benefit on Interest and Penalties [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating Expenses					201				0		353	36
Interest income, net					132				42		326	(182)
Income Tax Expense (Benefit)					(333)				$ (42)		(679)	$ 146
Adjustments for New Accounting Pronouncement [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Deferred Income Taxes and Other Assets, Current					(19,747)						(19,747)
Assets, Current					(19,747)						(19,747)
Deferred Income Taxes and Other Assets, Noncurrent					$ 19,747						$ 19,747