CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND OTHER COMPREHENSIVE INCOME (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Jan. 30, 2016
Jan. 24, 2015
Jan. 30, 2016
Jan. 24, 2015
Income Statement [Abstract]        
Net sales $ 1,400,853 $ 958,628 $ 3,932,933 $ 2,875,804
Cost of sales 1,060,989 696,186 2,973,926 2,103,458
Gross profit 339,864 262,442 959,007 772,346
Operating expenses 244,135 185,065 717,638 556,833
Operating income from continuing operations 95,729 77,377 241,369 215,513
Other income (expense):        
Other income, net 830 541 2,454 2,688
Interest expense (10,634) (8,512) (39,931) (25,824)
Income from continuing operations before taxes 85,925 69,406 203,892 192,377
Income tax expense 28,735 22,972 83,828 65,753
Net income from continuing operations 57,190 46,434 120,064 126,624
Net income (loss) from discontinued operations (750) 8,242 1,500 32,119
Net income $ 56,440 $ 54,676 $ 121,564 $ 158,743
Basic earnings (loss) per share:        
Continuing operations (in USD per share) $ 0.60 $ 0.47 $ 1.23 $ 1.28
Discontinued operations (in USD per share) (0.01) 0.08 0.01 0.32
Net basic earnings per share (in USD per share) 0.59 0.55 1.24 1.60
Diluted earnings (loss) per share:        
Continuing operations (in USD per share) 0.60 0.47 1.22 1.27
Discontinued operations (in USD per share) (0.01) 0.08 0.01 0.32
Net diluted earnings per share (in USD per share) $ 0.59 $ 0.55 $ 1.23 $ 1.59
Weighted average shares:        
Basic (in shares) 95,335 98,842 97,809 98,991
Diluted (in shares) 95,930 99,540 98,488 99,699
Dividends declared per common share (in USD per share) $ 0.22 $ 0.20 $ 0.66 $ 0.60
Comprehensive income        
Net income $ 56,440 $ 54,676 $ 121,564 $ 158,743
Foreign currency translation gain (loss) (18,679) (44,781) (23,013) (71,287)
Cash flow hedges, net of tax 442 (8,143) 1,496 (14,319)
Comprehensive income $ 38,203 $ 1,752 $ 100,047 $ 73,137