Defined Benefit Pension Plans and Other Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Pension Benefits
Components of Net Periodic Benefit Cost
Service cost	$ 138	$ 113
Interest cost	1,034	1,078
Expected return on plan assets	(1,412)	(1,449)
Amortization:
Losses	226	1,357
Net amortization	226	1,357
Net Periodic Benefit Cost	(14)	1,099
Other Benefits
Components of Net Periodic Benefit Cost
Service cost	165	210
Interest cost	66	61
Expected return on plan assets	0	0
Amortization:
Losses	25	48
Net amortization	25	48
Net Periodic Benefit Cost	$ 256	$ 319