Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Class A Common Shares	Class B Common Shares	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings	Basis difference related to acquisition of commonly controlled entity	Accumulated other comprehensive loss
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	124,271				0	124,271	0	0
Stock-based compensation expense, before related tax effects	9,768				9,768	0	0	0
Stock units granted	969				969	0	0	0
Stock units granted (in shares)		34
Exercise of stock options	3,453				3,453	0	0	0
Exercise of stock options, net of settlement of taxes (in shares)		266
Vesting of restricted stock units, net of settlement of taxes	(1,271)				(1,271)	0	0	0
Vesting of restricted stock units, net of settlement of taxes (in shares)		51
Treasury Stock, Shares, Acquired				2,140
Stock Repurchased During Period, Shares		(2,140)
Stock Repurchased During Period, Value	(63,062)			$ (63,062)
Excess tax benefits related to stock-based compensation	2,517				2,517	0	0	0
Foreign currency translation	(6,810)							(6,810)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(267)							(267)
Dividends paid	(52,555)					(52,555)
Balance at Oct. 31, 2015	1,028,133			$ (150,000)	924,115	292,542	(24,993)	(13,531)
Balance (in shares) at Oct. 31, 2015		78,877	7,733	5,176
Balance at Jan. 30, 2016	904,924			$ (266,531)	930,011	287,140	(24,993)	(20,703)
Balance (in shares) at Jan. 30, 2016		74,185	7,733	10,211
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net income	94,009					94,009	0	0
Stock-based compensation expense, before related tax effects	8,968				8,968	0	0	0
Stock units granted	1,188				1,188	0	0	0
Stock units granted (in shares)		64
Exercise of stock options	3,615				3,615	0	0	0
Exercise of stock options, net of settlement of taxes (in shares)		266
Vesting of restricted stock units, net of settlement of taxes	(2,421)				(2,421)	0	0	0
Vesting of restricted stock units, net of settlement of taxes (in shares)		149
Treasury Stock, Shares, Acquired				2,029
Stock Repurchased During Period, Shares		(2,029)
Stock Repurchased During Period, Value	(42,698)			$ (42,698)
Excess tax benefits related to stock-based compensation	124				124	0	0	0
Foreign currency translation	4,709							4,709
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	103							103
Dividends paid	(49,098)					(49,098)
Balance at Oct. 29, 2016	$ 923,423			$ (309,229)	$ 941,485	$ 332,051	$ (24,993)	$ (15,891)
Balance (in shares) at Oct. 29, 2016		72,635	7,733	12,240