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Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 30, 2018	Dec. 31, 2017	Mar. 31, 2018
Revenue from External Customer [Line Items]
Revenue	$ 680,022	$ 658,935	$ 2,011,414	$ 1,898,849
Typical payment terms			30 days
Current contract liability	24,736		$ 24,736		$ 9,387
Noncurrent contract liability	7,430		7,430		7,094
Unbilled contracts receivable	31,916		31,916		$ 24,810
Revenue recognized	1,950		2,695
Right of return asset related to value of inventory	2,647		2,647
Refund liability	5,013		5,013
Cost of goods sold	511,729	491,625	1,516,381	1,407,833
Other (income) expense, net	(55)	(212)	(1,052)	5,816
ASU No. 2017-07
Revenue from External Customer [Line Items]
Cost of goods sold		(345)		(1,080)
Other (income) expense, net	284	$ 374	607	$ 735
Transferred over Time
Revenue from External Customer [Line Items]
Revenue	19,421		54,316
Service Revenue
Revenue from External Customer [Line Items]
Revenue	$ 37,472		$ 106,672

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