Retirement and Other Benefit Plans Retirement and Other Benefit Plans (Schedule of Expected Amortization of Components of AOCI) $ in Thousands	12 Months Ended
	Feb. 03, 2018 USD ($)
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of net actuarial loss (gain)	$ 3,042
Amortization of net prior service credit	(1,164)
Expected amortization, net of tax:	1,878
Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of net actuarial loss (gain)	(92)
Expected amortization, net of tax:	$ (92)