Notes Payable (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of debt

Notes payable are summarized as follows:

	December 31
	2014		2013
7.50% Convertible Notes, due 2016	$	55,481	$	55,500
7.50% Exchange Notes, due 2016	44,475		44,500
4.50% Convertible Senior Notes, due 2024 (a)	—		5,402
8.50% Senior Notes due 2019	200,000		—
Senior Secured Credit Facility	—		—
Total	$	299,956	$	105,402

(a) These Notes were tendered and repaid on April 1, 2014.

Maturities of notes payable

     Maturities of notes payable at December 31, 2014 are as follows (in thousands):  

	Total
2015	$	—
2016	99,956
2017	—
2018	—
2019	200,000
Thereafter	—
	$	299,956