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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Income Tax Disclosure [Abstract]        
Effective income tax rate 24.40% 21.90% 23.30% 21.90%
Increase (decrease) in unrecognized tax benefits $ (2.0)      
Reasonably possible amount of reduction in unrecognized tax benefit over the next twelve months $ 2.5   $ 2.5