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Debt (Tables)
 9 Months Ended
Sep. 30, 2023
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Long-term debt consists of the following (in thousands):
September 30, 2023December 31, 2022
4.625% Senior Notes
$460,038 $460,038 
1.75% Convertible Notes
550,000 550,000 
Total Notes1,010,038 1,010,038 
Credit Agreement— — 
Less: Unamortized discount(2,540)(2,764)
Deferred issuance costs(6,755)(8,221)
Total long-term debt$1,000,743 $999,053 
Schedule of Debt Repurchases
Repurchases of 4.625% Senior Notes on the open market were as follows (in thousands):
Three months ended September 30, 2022Nine months ended September 30, 2022
Principal repurchased$105,135 $181,238 
Aggregate purchase price$94,051 $167,661 
Gain on repurchase (1)
$10,211 $12,060 
(1)Presented within ‘Gain on debt extinguishment, net” on the Condensed Consolidated Statements of Operations.
Schedule of Debt
The following table provides additional information related to the 1.75% Convertible Notes (in thousands):
September 30, 2023December 31, 2022
Principal amount of 1.75% Convertible Notes
$550,000 $550,000 
Less: Carrying amount of debt issuance costs(5,952)(7,347)
Net carrying amount of 1.75% Convertible Notes
$544,048 $542,653 
The following table provides the components of interest expense related to the 1.75% Convertible Notes (in thousands):
Three months ended September 30,Nine months ended September 30,
2023202220232022
Contractual interest expense$2,746 $2,407 $14,963 $7,370 
Amortization of debt issuance costs466 456 1,395 1,400 
Total interest expense related to 1.75% Convertible Notes
$3,212 $2,863 $16,358 $8,770