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Acquisitions (Pro Forma Information) (Details) (USD $)	1 Months Ended	3 Months Ended
	Sep. 25, 2011	Sep. 25, 2011	Sep. 26, 2010
Business Combination, Results of Operations of Acquired Company [Abstract]
Revenue		$ 268,980,000	$ 268,437,000
Income from Operations		16,330,000	75,371,000
Net income		12,819,000	58,036,000
Basic net income per share		$ 0.11	$ 0.54
Diluted net income per share		$ 0.11	$ 0.53
Rudd Lighting, Inc. [Member]
Business Combination, Pro Forma Information [Abstract]
Revenue		299,312,000	310,296,000
Income from operations		8,788,000	68,146,000
Net income		8,853,000	53,602,000
Earnings per share, basic		$ 0.08	$ 0.47
Earnings per share, diluted		$ 0.08	$ 0.46
Business Combination, Results of Operations of Acquired Company [Abstract]
Revenue	22,343,000
Income from Operations	(522,000)
Net income	(664,000)
Basic net income per share	$ (0.01)
Diluted net income per share	$ (0.01)
Unaudited por foram revenue for Ruud Lighting		$ 53,800,000	$ 47,300,000

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