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Fixed Assets (Schedule Of Depreciation And Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	7 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2011	May 31, 2010	May 31, 2009
Fixed Assets [Abstract]
Fixed assets depreciation and amortization expense	$ 12,588	$ 35,794	$ 9,161	$ 6,892

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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