Company Inquiry and Restatement (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net Loss	$ (167,762)	$ (36,860)	[1]
Items included in net loss not affecting cash flows:
Deferred income tax benefit	(9,704)	(3,575)
Undistributed earnings of affiliated companies	(6,719)	1,932
Changes in operating assets and liabilities	34,096	10,136
Scenario, Previously Reported [Member]
Net Loss		(34,813)
Items included in net loss not affecting cash flows:
Deferred income tax benefit		(1,683)
Undistributed earnings of affiliated companies		1,760
Changes in operating assets and liabilities		6,369
Scenario, Adjustment [Member]
Net Loss		(2,047)	[2],[3]
Items included in net loss not affecting cash flows:
Deferred income tax benefit		(1,892)	[4]
Undistributed earnings of affiliated companies		172	[5]
Changes in operating assets and liabilities		$ 3,767	[4]

[1] Net loss has been restated for the three months ended March 31, 2012 as more fully described in Note 2.

[2] To adjust for the understatement of the net loss resulting from (1) the $172 overstatement in equity in income of affiliated companies resulting from the error in the method used to estimate the credit valuation adjustments associated with the fair valuation of the interest rate swap derivative contracts of certain of the Company’s equity method investees and (2) the $1,875 understatement in the income tax provision primarily related to changes in reserves for uncertain tax positions and the after-tax effect of accrued interest related to reserves for uncertain tax positions.

[3] To adjust for the understatement in the net loss resulting from (1) the $172 overstatement in equity in income of affiliated companies resulting from the error in the method used to estimate the credit valuations adjustments associated with the fair valuation of the interest rate swap derivative contracts of certain of the Company's equity method investees and (2) the $1,875 understatement in the tax provision relating to changes in reserves for uncertain tax positions and the after-tax effect of accrued interest related to reserves for uncertain tax positions.

[4] To adjust for the understatement in the deferred tax benefit, the overstatement of income taxes recoverable, which is a component of receivables, and the understatements of income taxes payable and reserve for uncertain tax positions.

[5] To adjust undistributed earnings of affiliates for the $172 overstatement in equity in income of affiliated companies resulting from the error in the method used to estimate the credit valuation adjustments associated with the fair valuation of the interest rate swap derivative contracts of certain of the Company's equity method investees.