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	84,976				0	84,976	0	0
Stock-based compensation expense, before related tax effects	6,729				6,729	0	0	0
Stock units granted	926				926	0	0	0
Stock units granted (in shares)		31
Exercise of stock options	3,431				3,431	0	0	0
Exercise of stock options, net of settlement of taxes (in shares)		263
Vesting of restricted stock units, net of settlement of taxes	(1,272)				(1,272)	0	0	0
Vesting of restricted stock units, net of settlement of taxes (in shares)		51
Excess tax benefits related to stock-based compensation	2,189				2,189	0	0	0
Foreign currency translation	(6,838)							(6,838)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(311)							(311)
Dividends paid	(35,292)					(35,292)
Balance at Aug. 01, 2015	1,065,658			$ (86,938)	920,682	270,510	(24,993)	(13,603)
Balance (in shares) at Aug. 01, 2015		81,011	7,733	3,036
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	55,046					55,046	0	0
Stock-based compensation expense, before related tax effects	6,326				6,326	0	0	0
Stock units granted	990				990	0	0	0
Stock units granted (in shares)		52
Exercise of stock options	429				429	0	0	0
Exercise of stock options, net of settlement of taxes (in shares)		37
Vesting of restricted stock units, net of settlement of taxes	(1,104)				(1,104)	0	0	0
Vesting of restricted stock units, net of settlement of taxes (in shares)		85
Excess tax benefits related to stock-based compensation	(80)				(80)	0	0	0
Foreign currency translation	7,246							7,246
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	276							276
Dividends paid	(32,683)					(32,683)
Balance at Jul. 30, 2016	$ 941,370			$ (266,531)	$ 936,572	$ 309,503	$ (24,993)	$ (13,181)
Balance (in shares) at Jul. 30, 2016		74,359	7,733	10,211