Convertible Notes (Tables) - Convertible Notes

9 Months Ended

Sep. 30, 2019

Convertible Notes

Schedule of Convertible Notes

	September 30,
	2019
Par value of the Convertible Notes	$	201,250
Unamortized debt discounts		(38,930)
Unamortized debt issuance costs		(3,890)
Net carrying value of Convertible Notes	$	158,430

Schedule of interest expense related to the Convertible Notes

	Three Months			Nine Months
	Ended			Ended
	September 30, 2019			September 30, 2019
Contractual interest expense	$	503		$	1,509
Amortization of debt issuance costs		213			632
Amortization of debt discount		2,079			6,127
Total	$	2,795		$	8,268
Effective interest rate of the liability component		7.1	%		7.1	%

Schedule of amortization expense for debt discount and debt issuance costs

	Debt		Debt Issuance
	Discounts		Costs
October 1, 2019―December 31, 2019	$	2,117	$	217
January 1, 2020―December 31, 2020		8,864		901
January 1, 2021―December 31, 2021		9,528		955
January 1, 2022―December 31, 2022		10,241		1,015
January 1, 2023―December 31, 2023		8,180		802
	$	38,930	$	3,890