Defined Benefit Pension Plans and Other Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 01, 2015	Aug. 02, 2014	Aug. 01, 2015	Aug. 02, 2014
Pension Benefits
Components of Net Periodic Benefit Cost
Service cost	$ 112	$ 113	$ 225	$ 225
Interest cost	1,062	1,163	2,140	2,338
Expected return on plan assets	(1,446)	(1,517)	(2,895)	(3,035)
Amortization:
Losses	1,197	860	2,554	1,826
Net amortization	1,197	860	2,554	1,826
Net Periodic Benefit Cost	925	619	2,024	1,354
Other Benefits
Components of Net Periodic Benefit Cost
Service cost	209	130	419	266
Interest cost	62	55	123	116
Expected return on plan assets	0	0	0	0
Amortization:
Losses	48	24	96	53
Net amortization	48	24	96	53
Net Periodic Benefit Cost	$ 319	$ 209	$ 638	$ 435