Debt - Additional Information (Detail) - Line of Credit [Member] - Credit Agreement [Member] - USD ($) $ in Millions |
Jul. 15, 2015 |
Apr. 29, 2017 |
Jan. 28, 2017 |
|---|---|---|---|
| Debt Instrument [Line Items] | |||
| Maximum borrowing capacity | $ 125.0 | ||
| Available borrowings | $ 125.0 | $ 125.0 | |
| Base Rate, Federal Funds Rate [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis spread on variable rate | 0.50% | ||
| Base Rate, LIBOR [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis spread on variable rate | 1.00% | ||
| Minimum [Member] | Alternate Base Rate [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis spread on variable rate | 0.00% | ||
| Minimum [Member] | Adjusted LIBOR [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis spread on variable rate | 1.00% | ||
| Maximum [Member] | Alternate Base Rate [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis spread on variable rate | 0.70% | ||
| Maximum [Member] | Adjusted LIBOR [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis spread on variable rate | 1.70% |