Quarterly report pursuant to Section 13 or 15(d)

Investments - Additional Information (Detail)

v3.5.0.2
Investments - Additional Information (Detail) - USD ($)
$ in Thousands
Oct. 29, 2016
Jan. 30, 2016
Oct. 31, 2015
Investments Schedule [Abstract]      
Certificates of deposit $ 110,000 $ 130,000 $ 150,209