Acquisitions (Pro Forma Information) (Details) (USD $)	3 Months Ended		7 Months Ended	9 Months Ended
	Mar. 25, 2012	Mar. 27, 2011	Mar. 25, 2012	Mar. 25, 2012	Mar. 27, 2011
Business Combination, Results of Operations of Acquired Company [Abstract]
Revenue	$ 284,801,000	$ 219,168,000		$ 857,899,000	$ 744,588,000
Income from Operations	7,190,000	21,954,000		37,401,000	154,970,000
Net income	9,489,000	18,881,000		34,386,000	126,692,000
Basic net income per share	$ 0.08	$ 0.17		$ 0.30	$ 1.17
Diluted net income per share	$ 0.08	$ 0.17		$ 0.30	$ 1.15
Rudd Lighting, Inc. [Member]
Business Combination, Pro Forma Information [Abstract]
Revenue		266,524,000		888,231,000	890,040,000
Income from operations		18,321,000		28,879,000	142,369,000
Net income		16,443,000		32,401,000	121,876,000
Earnings per share, basic		$ 0.14		$ 0.28	$ 1.07
Earnings per share, diluted		$ 0.14		$ 0.28	$ 1.05
Business Combination, Results of Operations of Acquired Company [Abstract]
Revenue	56,598,000		140,089,000
Income from Operations	(1,376,000)		(251,000)
Net income	(1,207,000)		(552,000)
Basic net income per share	$ (0.01)		$ 0.00
Diluted net income per share	$ (0.01)		$ 0.00
Unaudited por foram revenue for Ruud Lighting		$ 49,300,000		$ 171,600,000	$ 156,700,000