Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of Convertible Senior Notes

The 2027 Notes consisted of the following components as of September 30, 2021 and December 31, 2020 (in thousands):

	September 30, 2021		December 31, 2020
Liability component:
Principal	$	1,150,000	$	1,150,000
Less: debt discount and issuance costs, net of amortization	(175,935)		(196,359)
Net carrying amount	$	974,065	$	953,641
Equity component:	$	220,529	$	220,529

The 2025 Notes consisted of the following components as of September 30, 2021 and December 31, 2020 (in thousands):

	September 30, 2021		December 31, 2020
Liability component:
Principal	$	1,150,000	$	1,150,000
Less: debt discount and issuance costs, net of amortization	(165,507)		(196,934)
Net carrying amount	$	984,493	$	953,066
Equity component:	$	285,225	$	285,225

Schedule of Interest Expense

The following table sets forth total interest expense included in the condensed consolidated statements of income for the three and nine months ended September 30, 2021 and 2020 (in thousands):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2021		2020		2021		2020
Amortization of debt discount and issuance costs	$	17,504	$	16,866	$	52,029	$	50,130
Coupon interest payable on 2025 Notes	358		360		1,076		1,078
Coupon interest payable on 2027 Notes	1,078		1,078		3,234		3,234
Revolving credit facility contractual interest expense	141		139		421		409
Capitalization of interest expense	(937)		(1,119)		(2,745)		(3,073)
Total interest expense	$	18,144	$	17,324	$	54,015	$	51,778