Convertible Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Summary of Debt

A summary of our convertible debt as of December 31, 2016 and 2015 is as follows (in thousands):

	December 31, 2016			December 31, 2015
Convertible debt:
2018 Notes, due February 1, 2018	$	32,485		$	61,632
2019 Notes, due October 1, 2019	148,073			149,500
Total debt	180,558			211,132
Add:
Fair value of embedded derivative	—			82
Less:
Unamortized debt discount	(5,668		)	(8,749		)
Debt issuance costs	(270		)	(450		)
Long-term portion of debt	$	174,620		$	202,015

Summary of Debt Maturity

A summary of debt maturity as of December 31, 2016 was as follows (in thousands):

2017	$	—
2018	32,485
2019	148,073
Total	$	180,558