Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Financial Instruments Measured on Recurring Basis

The carrying amounts and estimated fair values of our senior notes and interest rate swaps were as follows:

		December 31, 2014				December 31, 2013
Financial Instrument	Fair Value Input Level	Carrying Value		Fair Value		Carrying Value		Fair Value
		(In thousands)
Assets:
Interest rate swaps	Level 2	$	1,019	$	1,019	$	1,670	$	1,670
Liabilities:
Senior notes:
6.5% Senior Notes	Level 2	$	296,579	$	291,000	$	295,927	$	313,500
8.25% Senior Notes	Level 2	—		—		148,703		158,250
		296,579		291,000		444,630		471,750
Interest rate swaps	Level 2	1,065		1,065		1,814		1,814
		$	297,644	$	292,065	$	446,444	$	473,564