Notes Payable (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of debt

Senior Notes are summarized as follows:

	December 31,
	2015		2014
7.50% Senior Convertible Notes due 2016	$	46,793	$	55,481
7.50% Senior Exchange Convertible Notes due 2016		—		44,475
8.50% Senior Notes due 2019		200,000		200,000
6.00% Senior Convertible Notes due 2020		80,000		—
Senior Secured Credit Facility		—		—
Total Senior Notes	$	326,793	$	299,956
Deferred debt issuance costs		(5,877)		(5,735)
Debt discount		(70)		—
Total Senior Notes, net	$	320,846	$	294,221

Maturities of notes payable

Maturities of Senior Notes as of December 31, 2015 are as follows (in thousands):

	Total
2016	$	46,793
2017		—
2018		—
2019		200,000
2020		80,000
Thereafter		—
Total	$	326,793