CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jul. 01, 2016
Income Statement [Abstract]
Net sales	$ 6,008,272	$ 5,876,813
Cost of sales	5,601,340	5,470,818
Gross profit	406,932	405,995
Selling, general and administrative expenses	250,811	239,546
Intangible amortization	19,901	21,598
Interest and other, net	26,876	24,399
Other charges (income), net	(36,165)	3,529
Income before income taxes	145,509	116,923
Provision for income taxes	20,799	11,194
Net income	$ 124,710	$ 105,729
Earnings per share:
Basic (in dollars per share)	$ 0.24	$ 0.19
Diluted (in dollars per share)	$ 0.23	$ 0.19
Weighted-average shares used in computing per share amounts:
Basic (in shares)	530,268	544,631
Diluted (in shares)	538,633	551,029