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Income Taxes - Deferred Income Taxes - Undistributed Earnings - Narrative (Detail) - USD ($)
 9 Months Ended 12 Months Ended
Jan. 29, 2017
Apr. 28, 2019
Dec. 31, 2017
Apr. 30, 2017
Jan. 28, 2018
Income Taxes [Line Items]          
Undistributed earnings from our foreign subsidiaries that will not be reinvested indefinitely $ 143,200,000   $ 156,700,000 $ 146,900,000  
U.S. foreign income tax credits 42,100,000   $ 42,200,000 43,500,000  
Deferred tax liability, undistributed earnings from foreign subsidiaries 405,000     497,000 $ 3,100,000
U.S. income and foreign withholding taxes $ 42,500,000     $ 44,000,000  
Scenario, Forecast [Member]          
Income Taxes [Line Items]          
Dividends received deduction percentage for earnings and profits received from foreign corporation   100.00%      
Dividends received deduction, foreign corporation ownership percentage   10.00%