Debt (Tables)

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following summarizes the Company’s outstanding debt:

	March 31, 2014			December 31, 2013
	(in thousands, except percentages)
Credit facility (1)	$	1,173,175		$	1,173,175
10.25% senior notes due June 2014	204,936			205,257
6.75% senior notes due November 2020	299,970			300,000
6.375% senior notes due September 2022	599,163			600,000
Net unamortized premiums	18,554			22,729
Total debt, net	2,295,798			2,301,161
Less current maturities	(207,502		)	(211,558		)
Total long-term debt, net	$	2,088,296		$	2,089,603

⁽¹⁾  Variable interest rates of 2.66% and 2.67% at March 31, 2014, and December 31, 2013, respectively.

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

	March 31, 2014				December 31, 2013
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Credit facility	$	1,173,175	$	1,173,175	$	1,173,175	$	1,173,175
Senior notes, net	1,122,623		1,138,698		1,127,986		1,128,527
Total debt, net	$	2,295,798	$	2,311,873	$	2,301,161	$	2,301,702