Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Notes Payable

Total convertible notes payable consisted of the following at (in thousands):

	December 31,		December 31,
	2016		2015
Principal amount of Notes	$	325,000	$	—
Unamortized debt issuance costs		(8,661)		—
Total convertible notes payable	$	316,339	$	—

Interest Expense

Interest expense incurred in connection with the Notes consisted of the following for the years ended December 31 (in thousands):

	2016		2015
Coupon interest	$	11,240	$	—
Amortization of debt issuance costs		1,305		—
Total interest expense on Notes	$	12,545	$	—