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Acquisitions (Schedule of Purchase Price Allocated to the Assets Acquired and Liabilities Assumed) (Details) (USD $)	Jun. 24, 2012	Aug. 17, 2011 Raw Material Inventory [Member]	Aug. 17, 2011 Finished Goods Inventory [Member]	Aug. 17, 2011 Scenario, Previously Reported [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Scenario, Adjustment [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Scenario, Actual [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Developed Technology Rights [Member] Scenario, Previously Reported [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Developed Technology Rights [Member] Scenario, Adjustment [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Developed Technology Rights [Member] Scenario, Actual [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Customer Relationships [Member] Scenario, Previously Reported [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Customer Relationships [Member] Scenario, Adjustment [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Customer Relationships [Member] Scenario, Actual [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Trade Names [Member] Scenario, Previously Reported [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Trade Names [Member] Scenario, Adjustment [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Trade Names [Member] Scenario, Actual [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 In Process Research and Development [Member] Scenario, Previously Reported [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 In Process Research and Development [Member] Scenario, Adjustment [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 In Process Research and Development [Member] Scenario, Actual [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Noncompete Agreements [Member] Scenario, Previously Reported [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Noncompete Agreements [Member] Scenario, Adjustment [Member] Rudd Lighting, Inc. [Member]	Aug. 17, 2011 Noncompete Agreements [Member] Scenario, Actual [Member] Rudd Lighting, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Fair Value Adjustment, Inventory	$ 800,000	$ (700,000)	$ 1,500,000
Business Acquisition, Purchase Price Allocation, Tangible Assets [Abstract]
Cash and cash equivalents				3,081,000	0	3,081,000
Accounts receivable				25,698,000	(375,000)	25,323,000
Inventories				39,330,000	(461,000)	38,869,000
Property and equipment				45,946,000	(233,000)	45,713,000
Other assets				4,727,000	0	4,727,000
Total tangible assets				118,782,000	(1,069,000)	117,713,000
Business Acquisition, Purchase Price Allocation, Intangible Assets [Abstract]
Intangible assets							96,300,000	0	96,300,000	84,820,000	0	84,820,000				15,050,000	0	15,050,000	9,800,000	0	9,800,000
Business Acquisition, Purchase Price Allocation, Intangible Assets Not Amortizable													82,950,000	0	82,950,000
Goodwill				287,431,000	2,734,000	290,165,000
Total intangible assets				576,351,000	2,734,000	579,085,000
Business Acquisition, Purchase Price Allocation, Liabilities [Abstract]
Accounts payable				12,943,000	0	12,943,000
Accrued expenses and liabilities				10,116,000	902,000	11,018,000
Warranty liabilities				2,600,000	3,023,000	5,623,000
Other long-term liabilities				1,208,000	0	1,208,000
Total liabilities assumed				26,867,000	3,925,000	30,792,000
Net assets acquired				$ 668,266,000	$ (2,260,000)	$ 666,006,000

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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