Acquisitions (Schedule Of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Mar. 26, 2016
Purchase price of acquisitions allocation
Goodwill	$ 438,472		$ 400,132
Fiscal 2017 Acquisitions [Member]
Purchase price of acquisitions allocation
Trade receivables	1,371
Inventories	4,283
Other current assets	243
Property, plant and equipment	8,917
Intangible assets	7,080
Other non-current assets	72
Long-term deferred income tax assets	3,004
Total assets acquired	24,970
Warranty reserves	145
Other current liabilities	887
Long-term capital leases and financing obligations	13,633
Other long-term liabilities	273
Total liabilities assumed	14,938
Total net identifiable assets acquired	10,032
Total consideration transferred	47,160
Less: total net identifiable assets acquired	10,032
Goodwill	$ 37,128
Fiscal 2016 Acquisitions [Member]
Purchase price of acquisitions allocation
Trade receivables		$ 365
Other current assets		2
Property, plant and equipment		415
Intangible assets		9,100
Other non-current assets		14
Long-term deferred income tax assets		396
Total assets acquired		10,292
Other current liabilities		397
Long-term capital leases and financing obligations		561
Other long-term liabilities		714
Total liabilities assumed		1,672
Total net identifiable assets acquired		8,620
Total consideration transferred		17,650
Less: total net identifiable assets acquired		8,620
Goodwill		$ 9,030