Intangible Assets (Changes in Carrying Amount) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Intangible Assets [Roll Forward]
Intangible assets, beginning balance			$ 110,668
Intangibles amortization	(3,109)	(3,474)	(6,418)	(6,938)
Foreign currency translation adjustments			(5)
Intangible assets, ending balance	104,245		104,245
Trademarks [Member]
Intangible Assets [Roll Forward]
Intangible assets, beginning balance			27,739
Intangibles amortization			0
Foreign currency translation adjustments			0
Intangible assets, ending balance	27,739		27,739
Non-competes and backlogs [Member]
Intangible Assets [Roll Forward]
Intangible assets, beginning balance			3,754
Intangibles amortization			(781)
Foreign currency translation adjustments			(5)
Intangible assets, ending balance	2,968		2,968
Customer relationships [Member]
Intangible Assets [Roll Forward]
Intangible assets, beginning balance			79,175
Intangibles amortization			(5,637)
Foreign currency translation adjustments			0
Intangible assets, ending balance	$ 73,538		$ 73,538