Long-Term Debt (Interest Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Long-Term Debt [Abstract]
Cash payments for interest	$ 47,077	$ 43,814	$ 21,357
Commitment and other fees paid	915	19	159
Amortization of debt issuance costs and discount on senior secured notes	2,495	3,504	2,153
Change in accrued interest	3,347	4	9,277
Capitalized interest		(887)
Other	52	17	3
Interest expense	$ 53,886	$ 46,471	$ 32,949