Stockholders' Equity - Schedule of Accumulated Other Comprehensive (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (16,488)	$ (15,247)
Other comprehensive income, net	1,490	4,987
Ending Balance	(14,998)	(10,260)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(16,474)	(15,136)
Other comprehensive income, net	1,479	4,993
Ending Balance	(14,995)	(10,143)
Net Unrealized Gains (Losses) on Available-for-Sale Investments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(14)	(111)
Other comprehensive income, net	11	(6)
Ending Balance	$ (3)	$ (117)