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Aggregate Maturities of Long-Term Debt, Exclusive of Current Installments (Detail) - USD ($)
$ in Thousands
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Debt Instrument [Line Items]      
2019 $ 0    
2020 0    
2021 0    
2022 750,000    
Later years 1,500,000    
Less amount representing unamortized debt discount (7,752)    
Less amount representing debt issuance cost (14,649) $ (9,051)  
Aggregate maturities of long-term debt $ 2,227,599 $ 1,615,003 $ 1,615,003