Summary of Significant Accounting Policies - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Jan. 28, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			$ 922,521	$ 956,783	$ 956,783
Amounts reclassified from AOCI:
Income tax expense			192
Total other comprehensive income (loss)	$ 6,141	$ (13,243)	8,486	(4,492)	(8,679)
Ending Balance	916,897	$ 886,919	916,897	886,919	922,521
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(40,329)
Amounts reclassified from AOCI:
Income tax expense			0
Total other comprehensive income (loss)			8,185
Ending Balance	(32,144)		(32,144)		(40,329)
Accumulated Foreign Currency Adjustment Attributable to Parent, Excluding Intra-Entity Transactions
Other comprehensive income (loss) before reclassifications:
Other comprehensive income (loss) before reclassifications			6,790
Accumulated Foreign Currency Adjustment Attributable to Parent, Intra-Entity Transactions
Other comprehensive income (loss) before reclassifications:
Other comprehensive income (loss) before reclassifications			1,395
Unrecognized Pension/Postretirement Benefit Costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(10,963)
Amounts reclassified from AOCI:
Amortization of net actuarial loss			493
Income tax expense			192
Total other comprehensive income (loss)			301
Ending Balance	(10,662)		(10,662)		(10,963)
Total Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(51,292)	$ (42,613)	(42,613)
Amounts reclassified from AOCI:
Total other comprehensive income (loss)			8,486		(8,679)
Ending Balance	$ (42,806)		$ (42,806)		$ (51,292)