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Fair Value Measurements (Details) (Fair Value, Inputs, Level 1 [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
6.75% Notes [Member]
Liabilities:
Long term debt, Carrying Amount	$ 550,000	$ 0
Long term debt, Fair Value	556,875	0
11% Notes [Member]
Liabilities:
Long term debt, Carrying Amount	0	429,193
Long term debt, Fair Value	$ 0	$ 467,500

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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