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Subsequent Events (Details) (Equity Method Investment Sold [Member], USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Subsequent Event [Line Items]
Proceeds from Divestiture of Interest in Consolidated Subsidiaries	$ 13,218
Financial Standby Letter of Credit [Member]
Subsequent Event [Line Items]
Guarantor Obligations, Contingent Letter of Credit	$ 2,500

- Definition

The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent).

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