Equity and Noncontrolling Interest (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
Carrying amount of equity
Beginning balance			$ 983,853	$ 904,390
Net earnings (loss)	39,902	25,348	124,364	81,872
Other comprehensive income			3,359	5,164
Cash dividends			(18,693)	(14,348)
Share-based compensation			10,166	8,787
Common stock issued to stock discount plan			1,725	1,512
Common stock issued upon exercise of stock options			4,270	991
Tax payments related to vested deferred stock units			(2,955)	(2,748)
Tax benefit related to share-based plans			1,552	662
Treasury stock purchased			(63,988)	(144)
Treasury stock issued to profit sharing plan				9
Fair value of non controlling interest associated with business acquired				13,004
Ending balance	1,043,653	999,151	1,043,653	999,151
Parent [Member]
Carrying amount of equity
Beginning balance			970,953	904,390
Net earnings (loss)			124,380	81,783
Other comprehensive income			3,138	5,114
Cash dividends			(18,693)	(14,348)
Share-based compensation			10,166	8,787
Common stock issued to stock discount plan			1,725	1,512
Common stock issued upon exercise of stock options			4,270	991
Tax payments related to vested deferred stock units			(2,955)	(2,748)
Tax benefit related to share-based plans			1,552	662
Treasury stock purchased			(63,988)	(144)
Treasury stock issued to profit sharing plan				9
Ending balance	1,030,548	986,008	1,030,548	986,008
Common Stock [Member]
Carrying amount of equity
Beginning balance			710	705
Common stock issued to stock discount plan			1	1
Common stock issued upon exercise of stock options			3	1
Common stock issued pursuant to restricted stock and deferred stock unit awards			3	2
Ending balance	717	709	717	709
Capital in Excess of Par Value [Member]
Carrying amount of equity
Beginning balance			341,663	327,742
Share-based compensation			10,166	8,787
Common stock issued to stock discount plan			1,724	1,511
Common stock issued upon exercise of stock options			4,267	990
Common stock issued pursuant to restricted stock and deferred stock unit awards			(3)	(2)
Tax payments related to vested deferred stock units			(2,955)	(2,748)
Tax benefit related to share-based plans			1,552	662
Ending balance	356,414	336,942	356,414	336,942
Retained Earnings [Member]
Carrying amount of equity
Beginning balance			1,002,975	956,032
Net earnings (loss)			124,380	81,783
Cash dividends			(18,693)	(14,348)
Ending balance	1,108,662	1,023,467	1,108,662	1,023,467
Accumulated Other Comprehensive Income [Member]
Carrying amount of equity
Beginning balance			38,366	32,537
Other comprehensive income			3,138	5,114
Ending balance	41,504	37,651	41,504	37,651
Treasury Stock, at Cost [Member]
Carrying amount of equity
Beginning balance			(412,761)	(412,626)
Treasury stock purchased			(63,988)	(144)
Treasury stock issued to profit sharing plan				9
Ending balance	(476,749)	(412,761)	(476,749)	(412,761)
Noncontrolling Interest [Member]
Carrying amount of equity
Beginning balance			12,900	0
Net earnings (loss)			(16)	89
Other comprehensive income			221	50
Fair value of non controlling interest associated with business acquired				13,004
Ending balance	$ 13,105	$ 13,143	$ 13,105	$ 13,143