Significant Accounting Policies - Changes in Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2018	Jan. 29, 2017	Jan. 31, 2016
Defined benefit plan
Other comprehensive (loss) before reclassifications - Pre-tax	$ 637	$ (2,861)	$ 0
Other comprehensive (loss) before reclassifications - Tax	(253)	447	0
Other comprehensive (loss) before reclassifications - Net	384	(2,414)	0
Other
Other comprehensive gain before reclassifications - Pre-tax	0	129	0
Other comprehensive gain before reclassifications - Tax	0	0	0
Other comprehensive gain before reclassifications - Net	0	129	0
Total other comprehensive income (loss)
Total other comprehensive (loss) income - Pre-tax	311	(2,358)	661
Total other comprehensive (loss) income - Tax	(217)	411	(171)
Other comprehensive income (loss)	94	(1,947)	490
Foreign currency cash flow hedges
Derivatives qualifying as hedges
Other comprehensive gain (loss) before reclassifications - Pre-tax	1,205	586	0
Other comprehensive gain (loss) before reclassifications - Tax	(263)	(64)	0
Other comprehensive gain (loss) before reclassifications - Net	942	522	0
Reclassification adjustments included in Interest expense, net - Pre-tax	(1,531)	(260)	0
Reclassification adjustments included in Interest expense, net - Tax	299	28	0
Reclassification adjustments included in Interest expense, net - Net	(1,232)	(232)	0
Total other comprehensive income (loss)
Other comprehensive income (loss)	(290)	290
Interest rate cap
Derivatives qualifying as hedges
Other comprehensive gain (loss) before reclassifications - Pre-tax	0	48	(33)
Other comprehensive gain (loss) before reclassifications - Tax	0	0	(171)
Other comprehensive gain (loss) before reclassifications - Net	0	48	(204)
Reclassification adjustments included in Interest expense, net - Pre-tax	0	0	694
Reclassification adjustments included in Interest expense, net - Tax	0	0	0
Reclassification adjustments included in Interest expense, net - Net	$ 0	$ 0	$ 694