Condensed Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total USD ($)	Class A Common Shares	Class B Common Shares	Treasury Stock [Member] USD ($)	Additional Paid-in Capital [Member] USD ($)	Retained Earnings USD ($)	Basis difference related to acquisition of commonly controlled entity USD ($)	Accumulated other comprehensive loss USD ($)
Balance at Feb. 01, 2014	$ 998,544			$ (1,600)	$ 890,698	$ 134,439	$ (24,993)	$ 0
Balance (in shares) at Feb. 01, 2014		83,033	7,733	38
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income	38,639				0	38,639	0	0
Stock-based compensation expense, before related tax effects	2,848				2,848	0	0	0
Stock units granted	40				40	0	0	0
Stock units granted (in shares)		3
Exercise of stock options	660				660	0	0	0
Exercise of stock options, net of settlement of taxes (in shares)		126
Vesting of restricted stock units, net of settlement of taxes	(1,352)				(1,352)	0	0	0
Vesting of restricted stock units, net of settlement of taxes (in shares)		64
Excess tax benefits related to stock-based compensation	884				884	0	0	0
Dividends paid	(16,975)					(16,975)
Foreign currency translation	0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	0
Balance at May. 03, 2014	1,023,288			(1,600)	893,778	156,103	(24,993)	0
Balance (in shares) at May. 03, 2014		83,226	7,733	38
Balance at Jan. 31, 2015	1,011,120			(86,938)	908,679	220,826	(24,993)	(6,454)
Balance (in shares) at Jan. 31, 2015		80,666	7,733	3,036
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income	47,366					47,366	0	0
Stock-based compensation expense, before related tax effects	3,521				3,521	0	0	0
Stock units granted	42				42	0	0	0
Stock units granted (in shares)		3
Exercise of stock options	2,601				2,601	0	0	0
Exercise of stock options, net of settlement of taxes (in shares)		224
Vesting of restricted stock units, net of settlement of taxes	(1,261)				(1,261)	0	0	0
Vesting of restricted stock units, net of settlement of taxes (in shares)		51
Excess tax benefits related to stock-based compensation	1,552				1,552	0	0	0
Dividends paid	(17,607)					(17,607)
Foreign currency translation	1,814							1,814
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(361)							(361)
Balance at May. 02, 2015	$ 1,048,787			$ (86,938)	$ 915,134	$ 250,585	$ (24,993)	$ (5,001)
Balance (in shares) at May. 02, 2015		80,944	7,733	3,036