Debt (Tables)

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Schedule of Convertible Notes

The Convertible Notes consisted of the following as of June 30, 2020:

	2017 Convertible Notes			2015 Convertible Notes
Remaining life in months		47			23
Liability component:
Gross proceeds	$	289,000		$	224,500
Less: debt discount, net of amortization		(42,795	)		(16,934	)
Less: debt issuance cost, net of amortization		(3,318	)		(1,569	)
Net carrying amount	$	242,887		$	205,997
Equity component (1)	$	70,140		$	52,903

(1) Included in Additional paid-in-capital on the consolidated balance sheet as of June 30, 2020.

Summary of Interest Expense Recognized

The following table presents the amount of interest expense recognized related to the Convertible Notes:

	For the Three Months Ended				For the Six Months Ended
	June 30, 2020		June 30, 2019		June 30, 2020		June 30, 2019
Contractual interest coupon	$	2,618	$	2,618	$	5,235	$	5,235
Amortization of debt discount		4,457		4,186		8,845		8,308
Amortization of debt issuance costs		391		375		777		747
Total interest expense recognized	$	7,466	$	7,179	$	14,857	$	14,290