Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Schedule Of Obligations Under Debt Arrangements

	December 31,
	2012		2011
Senior secured credit facility	$	500,000	$	409,300
7.875% senior unsecured notes (including unamortized premium of $895 and $0 in 2012 and 2011, respectively)	350,895		250,000
Total long-term debt	$	850,895	$	659,300