Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 22, 2010
10.75% senior notes
Fair value of other financial instruments
Interest rate (as a percent)	10.75%	10.75%	10.75%
Carrying Amount | 10.75% senior notes
Fair value of other financial instruments
Long-term debt	200,000	200,000
Carrying Amount | Senior secured Term Loan B
Fair value of other financial instruments
Long-term debt		165,487
Carrying Amount | Senior secured Term Loan A
Fair value of other financial instruments
Long-term debt	170,625
Carrying Amount | Notes payable and other
Fair value of other financial instruments
Long-term debt	2,491	3,907
Fair Value | 10.75% senior notes
Fair value of other financial instruments
Long-term debt	221,000	205,750
Fair Value | Senior secured Term Loan B
Fair value of other financial instruments
Long-term debt		159,044
Fair Value | Senior secured Term Loan A
Fair value of other financial instruments
Long-term debt	170,625
Fair Value | Notes payable and other
Fair value of other financial instruments
Long-term debt	2,410	3,823