Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Company's Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail)

v3.7.0.1
Income Taxes - Reconciliation of Company's Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract]    
Balance at beginning of the period $ 2,262 $ 1,414
Increase due to a current year position 1,048 900
Decrease due to a prior period position (5) (52)
Balance at the end of the period $ 3,305 $ 2,262