Debt (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Schedule of Net Carrying Amount of Liability and Equity Components of Notes

The net carrying amount of the liability and equity components of the Notes was as follows (in thousands):

	June 30,
	2019
Liability component:
Principal	$	690,000
Unamortized debt discount		(117,094	)
Unamortized transaction costs		(14,512	)
Net carrying amount	$	558,394
Equity component, net of transaction costs	$	114,974

Schedule of Interest Expense Recognized Related to Notes

Interest expense recognized related to the Notes was as follows (in thousands):

	Three and Six Months Ended June 30, 2019
Contractual interest expense	$	72
Amortization of debt discount		897
Amortization of transaction costs		111
Total	$	1,080