Debt (Tables)

3 Months Ended

Mar. 31, 2014

Debt Instruments [Abstract]

Schedule of Long-term Debt Instruments

The carrying amounts of our long-term debt are as follows:

	March 31, 2014			December 31, 2013
	(In thousands)
Credit Agreement	$	537,700		$	363,000
6.5% Senior Notes
Principal	300,000			300,000
Unamortized discount	(3,910		)	(4,073		)
	296,090			295,927
8.25% Senior Notes
Principal	—			150,000
Unamortized discount	—			(1,297		)
	—			148,703
Total long-term debt	$	833,790		$	807,630

Schedule of Derivative Instruments

Additional information on our interest rate swaps is as follows:

Derivative Instrument	Balance Sheet Location	Fair Value			Location of Offsetting Balance	Offsetting Amount
	(In thousands)
March 31, 2014
Interest rate swaps designated as cash flow hedging instrument:
Variable-to-fixed interest rate swap contracts ($155 million of LIBOR-based debt interest)	Other long-term     liabilities	$	(1,677	)	Accumulated other     comprehensive loss	$	(1,677	)
Variable-to-fixed interest rate swap contracts ($150 million of LIBOR-based debt interest)	Other long-term     assets	1,628			Accumulated other     comprehensive gain	1,628
		$	(49	)		$	(49	)
December 31, 2013
Interest rate swaps designated as cash flow hedging instrument:
Variable-to-fixed interest rate swap contracts ($155 million of LIBOR-based debt interest)	Other long-term     liabilities	$	(1,814	)	Accumulated other     comprehensive loss	$	(1,814	)
Variable-to-fixed interest rate swap contracts ($150 million of LIBOR-based debt interest)	Other long-term     assets	1,670			Accumulated other     comprehensive gain	1,670
		$	(144	)		$	(144	)

Schedule of Interest Expense and Other Debt Information

Interest expense consists of the following components:

	Three Months Ended March 31,
	2014		2013
	(In thousands)
Interest on outstanding debt:
Credit Agreement, net of interest on interest rate swaps	$	2,698	$	3,081
6.5% Senior Notes	4,875		4,875
8.25% Senior Notes	2,544		3,094
Amortization of discount and deferred debt issuance costs	511		530
Amortization of unrecognized loss attributable to terminated cash flow hedge	—		849
Commitment fees	202		124
Total interest incurred	10,830		12,553
Less capitalized interest	376		69
Net interest expense	$	10,454	$	12,484
Cash paid for interest	$	18,782	$	19,033