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Debt - Schedule of Long Term Debt in the Accompanying Condensed Consolidated Balance Sheets (Parenthetical) (Detail) - Term Loan [Member]
6 Months Ended
Jul. 29, 2017
Debt Instrument [Line Items]  
Debt instrument, maturity date Jan. 31, 2022
LIBOR [Member]  
Debt Instrument [Line Items]  
Debt instrument, description of variable rate basis LIBOR plus a margin of 1.0% to 1.5%, (2.03% as of July 29, 2017), and maturity date of January 31, 2022
Interest rate 2.03%
Minimum [Member] | LIBOR [Member]  
Debt Instrument [Line Items]  
Interest rate 1.00%
Maximum [Member] | LIBOR [Member]  
Debt Instrument [Line Items]  
Interest rate 1.50%