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Acquisitions Acquisition (Pro Forma Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 24, 2012	Mar. 25, 2012	Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 27, 2011	Dec. 26, 2010	Sep. 26, 2010	Jun. 24, 2012	Jun. 26, 2011	Jun. 27, 2010
Business Combinations Results Of Operations Of Acquired Company [Abstract]
Operating Income (Loss)									$ 47,647	$ 178,227	$ 205,472
Net Loss	10,026	9,489	12,078	12,819	19,808	18,881	49,775	58,036	44,412	146,500	152,290
Earnings per share, basic	$ 0.09	$ 0.08	$ 0.10	$ 0.11	$ 0.18	$ 0.17	$ 0.46	$ 0.54	$ 0.39	$ 1.35	$ 1.49
Earnings per share, diluted	$ 0.09	$ 0.08	$ 0.10	$ 0.11	$ 0.18	$ 0.17	$ 0.45	$ 0.53	$ 0.39	$ 1.33	$ 1.45
Rudd Lighting, Inc. [Member]
Business Combination, Pro Forma Information [Abstract]
Revenue									1,194,990	1,184,765
Operating Income									37,551	154,765
Net income									42,399	134,768
Earnings per share, basic									$ 0.37	$ 1.18
Earnings per share, diluted									$ 0.37	$ 1.16
Business Combinations Results Of Operations Of Acquired Company [Abstract]
Revenue									204,353
Operating Income (Loss)									(1,985)
Net Loss									$ (2,334)
Earnings per share, basic									$ (0.02)
Earnings per share, diluted									$ (0.02)

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