Retirement and Other Benefit Plans Retirement and Other Benefit Plans (Schedule of Components of Accumulated Other Comprehensive Income, Net of Tax) - USD ($) $ in Thousands	Feb. 03, 2018	Jan. 28, 2017
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss (gain)	$ 22,424	$ 35,104
Net prior service credit	(4,618)	(4,385)
Components of accumulated other comprehensive loss, net of tax:	17,806	30,719
Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss (gain)	(634)	(635)
Components of accumulated other comprehensive loss, net of tax:	$ (634)	$ (635)