Debt Arrangements (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Schedule of Debt Obligations

The Company’s debt obligations consist of the following:

	March 31, 2018			December 31, 2017
Senior Secured Notes	$	397,500		$	408,174
1.50% Convertible Notes		—			233,898
Variable Funding Note, net of original issue discount		92,294			91,363
Senior Secured Term Loan, net of original issue discount		170,473			74,813
5.75% Convertible Notes(1)		109,455			—
Unamortized debt issuance costs		(7,062	)		(7,406	)
Total debt		762,660			800,842
Less current maturities		46,549			44,349
Total long-term debt	$	716,111		$	756,493

⁽¹⁾ On February 12, 2018, the Company entered into the Exchange Agreements and consummated the Note Exchange on February 22, 2018, pursuant to which the Company exchanged approximately $125.0 million aggregate principal amount of its 1.50% Convertible Notes for 5.75% Convertible Notes issued by the Company in an aggregate principal amount of approximately $125.0 million.  See below for further details.

Company's Debt Maturities on Calendar Year Basis

As of March 31, 2018, the Company’s debt maturities on a calendar year basis are as follows:

	Total		April 1 through December31, 2018		2019		2020		2021		2022		Thereafter
Senior Secured Notes	$	397,500	$	32,020	$	42,693	$	42,693	$	42,693	$	42,693	$	194,708
Variable Funding Notes(1)	$	92,294		—		—		92,294		—		—		—
2017 Senior Secured Term Loan(2)	$	170,473		2,893		11,570		19,284		19,284		117,442		—
5.75% Convertible Notes(3)	$	109,455		—		—		—		—		—		109,455
Total	$	769,722	$	34,913	$	54,263	$	154,271	$	61,977	$	160,135	$	304,163

⁽¹⁾ Reflects the net debt carrying amount, effected by the outstanding balance of the original issue discount, in the unaudited condensed consolidated balance sheet as of March 31, 2018.  The actual principal outstanding balance of the Variable Funding Notes is $100.0 million as of March 31, 2018.

⁽²⁾ Reflects the net debt carrying amount, effected by the outstanding balance of the original issue discount, in the unaudited condensed consolidated balance sheet as of March 31, 2018.  The actual principal outstanding balance of the Senior Secured Term Loan is $192.3 million as of March 31, 2018.  

⁽³⁾ Reflects the debt carrying amount which is accounted for under the Fair Value Option in the unaudited condensed consolidated balance sheet as of March 31, 2018.  The actual principal outstanding balance of the 5.75% Convertible Notes is $116.2 million as of March 31, 2018.