Convertible Senior Notes - Expenses and Interest (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
3.75% Convertible Senior Notes
Convertible Senior Notes
Interest expense	$ 549	$ 1,849	$ 2,787	$ 5,547
Amortization of debt issuance costs	108	338	532	1,003
Interest and Debt Expense, Total	$ 657	$ 2,187	$ 3,319	$ 6,550
Effective interest rate (as a percent)	4.50%	4.50%	4.50%	4.50%
7.0% Convertible Senior Notes
Convertible Senior Notes
Interest expense	$ 2,478		$ 5,224
Amortization of premium	(1,308)		(2,781)
Interest and Debt Expense, Total	$ 1,170		$ 2,443
Effective interest rate (as a percent)	3.00%		3.00%