Income Taxes - Reconciliation of Company's Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jan. 30, 2016 |
Jan. 31, 2015 |
|
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract] | ||
| Balance at beginning of the period | $ 1,414 | $ 795 |
| Increase due to a current year position | 900 | 670 |
| Decrease due to a prior period position | (52) | (51) |
| Balance at the end of the period | $ 2,262 | $ 1,414 |
| X | ||||||||||
- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|