Long - Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Long-Term Debt [Abstract]

Computation of Long Term Debt

	As of December 31,
	2011		2010
6 3/ 4% Senior Subordinated Notes due 2014	$	200,000	$	200,000
8 5/ 8% Senior Notes due 2017		375,000		375,000
Bank debt		45,000		—
Total long-term debt	$	620,000	$	575,000