Summary of Significant Accounting Policies - Accumulated Other Comprehensive Loss (Details) $ in Thousands	3 Months Ended
	May 04, 2019 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 737,551
Amounts reclassified from AOCI:
Amortization of net actuarial loss and prior service cost	(151)
Income tax expense	(39)
Current period other comprehensive income (loss), net of tax	968
Ending Balance	662,926
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(33,752)
Amounts reclassified from AOCI:
Amortization of net actuarial loss and prior service cost	0
Income tax expense	0
Current period other comprehensive income (loss), net of tax	1,080
Ending Balance	(32,672)
Foreign currency translation adjustment
Other comprehensive income (loss) before reclassifications:
Other comprehensive income (loss) before reclassifications	1,439
Loss on intra-entity foreign currency transactions
Other comprehensive income (loss) before reclassifications:
Other comprehensive income (loss) before reclassifications	(359)
Unrecognized Pension Postretirement Benefit Costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(4,184)
Other comprehensive income (loss) before reclassifications:
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from AOCI:
Amortization of net actuarial loss and prior service cost	(151)
Income tax expense	(39)
Current period other comprehensive income (loss), net of tax	(112)
Ending Balance	(4,296)
Total Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(37,936)
Amounts reclassified from AOCI:
Ending Balance	$ (36,968)