Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2017	Jul. 31, 2016
Net income	$ 12,564	$ 8,978	$ 24,385	$ 15,866
Other comprehensive income, net:
Unrealized gain on convertible debt	0	0	750	0
Release of realized gain on convertible debt	(750)	0	(750)	0
Change in employee benefit plans	22	0	43	0
Other comprehensive (loss) income, net	(121)	(1,606)	780	370
Comprehensive income	12,443	7,372	25,165	16,236
Foreign Exchange Contract [Member]
Other comprehensive income, net:
Unrealized gain (loss)	810	(1,235)	993	743
Realized (gain) loss on foreign currency cash flow hedges	(203)	(371)	(256)	(458)
Interest Rate Cap [Member]
Other comprehensive income, net:
Unrealized gain (loss)	$ 0	$ 0	$ 0	$ 85