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Goodwill And Intangible Assets (Schedule Of Amortization Expense Related To Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	7 Months Ended		12 Months Ended
	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011	May 31, 2010	May 31, 2009
Goodwill And Intangible Assets [Abstract]
Proprietary technology amortization included in cost of revenue, system sales	$ 12,719		$ 27,478	$ 11,064	$ 7,836
Intangible amortization included in operating expenses	16,235	5,914	37,344	10,060	6,884
Total intangible amortization expense	$ 28,954		$ 64,822	$ 21,124	$ 14,720

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the costs of intangible assets over the expected benefit period of such assets. This element applies only to intangible assets used in the production of goods.

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