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Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 24, 2016	Dec. 26, 2015	Mar. 26, 2016
Business Acquisition [Line Items]
Goodwill acquired	$ 496,105		$ 400,132
Cash paid, net of cash acquired	(133,684)	$ (48,157)
Fiscal 2017 and 2016 Acquisitions [Member]
Business Acquisition [Line Items]
Fair value of assets acquired	76,149
Goodwill acquired	95,973
Cash paid, net of cash acquired	(133,684)
Amounts payable to sellers	545
Liabilities assumed	$ 38,983
Fiscal 2016 Adjusted Acquisitions [Member]
Business Acquisition [Line Items]
Fair value of assets acquired		29,087
Goodwill acquired		46,142
Cash paid, net of cash acquired		(44,769)
Amounts payable to sellers		(6,000)
Liabilities assumed		$ 24,460

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