Interest Expense (Tables)

6 Months Ended

Jun. 30, 2015

Interest Expense [Abstract]

Interest Expense Schedule

The following table presents the components of the Company’s interest expense:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In thousands)
Contractual interest on the Subordinated Convertible Debentures	$	10,156		$	10,156		$	20,312		$	20,312
Contractual interest on 2023 Senior Notes	8,672			8,672			17,344			17,344
Contractual interest on 2025 Senior Notes	6,562			—			6,927			—
Amortization of debt discount on the Subordinated Convertible Debentures	2,527			2,329			5,004			4,611
Credit facility fees and amortization of debt issuance costs	735			494			1,239			985
Interest capitalized to Property and equipment, net	(149		)	(161		)	(306		)	(377		)
Total interest expense	$	28,503		$	21,490		$	50,520		$	42,875