Convertible Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Debt

The following table outlines the effective interest rate, contractually stated interest costs, and costs related to the amortization of issuance costs for the Company's 2015 convertible senior notes:

	Years Ended
	December 31,
	2016	2015	2014
Effective interest rate of 2015 convertible senior notes	NA	4.50%	4.50%
Contractually stated interest costs	NA	$101	$810
Amortization of interest costs	NA	$7	$43