Defined Benefit Pension Plans and Other Postretirement Benefit Plans - Balance Sheets (Details) - USD ($) $ in Thousands	Jan. 28, 2017	Jan. 30, 2016
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Current liabilities	$ 0	$ 0
Noncurrent liabilities	(6,265)	(9,957)
Net Amount Recognized	(6,265)	(9,957)
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Current liabilities	(343)	(274)
Noncurrent liabilities	(8,600)	(6,552)
Net Amount Recognized	$ (8,943)	$ (6,826)