Assets and liabilities measured at fair value (Detail) $ in Thousands	Jan. 29, 2016 USD ($)
Reported amount | Current portion of long-term debt obligations
Liabilities:
Long-term obligations	$ 1,379
Reported amount | Long-term obligations
Liabilities:
Long-term obligations	2,969,175
Reported amount | Accrued expenses and other current liabilities
Liabilities:
Deferred compensation	8,307
Reported amount | Noncurrent Other liabilities
Liabilities:
Deferred compensation	12,757
Fair value measurements on recurring basis | Balance at the end of the period
Liabilities:
Long-term obligations	2,980,929
Deferred compensation	21,064
Fair value measurements on recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)
Liabilities:
Long-term obligations	2,305,470
Deferred compensation	21,064
Fair value measurements on recurring basis | Significant Other Observable Inputs (Level 2)
Liabilities:
Long-term obligations	$ 675,459