Liabilities - Convertible Senior Notes - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Non-Cash Interest Expense
Amortization of debt discount/transaction costs	$ 296	$ 226
Total Interest Expense	2,415	2,580
2023 Notes
Cash Interest Expense
Coupon interest expense		23
Non-Cash Interest Expense
Amortization of debt discount/transaction costs		4
2025 Notes
Cash Interest Expense
Coupon interest expense	232	1,159
Non-Cash Interest Expense
Amortization of debt discount/transaction costs	$ 28	117
Convertible Debt, Fair Value by Fair Value Hierarchy Level	Level 2
Estimated fair value	$ 36,800
2027 Notes
Cash Interest Expense
Coupon interest expense	234	1,172
Non-Cash Interest Expense
Amortization of debt discount/transaction costs	$ 20	$ 105
Convertible Debt, Fair Value by Fair Value Hierarchy Level	Level 2
Estimated fair value	$ 62,100
2029 Notes
Cash Interest Expense
Coupon interest expense	1,653
Non-Cash Interest Expense
Amortization of debt discount/transaction costs	$ 248
Convertible Debt, Fair Value by Fair Value Hierarchy Level	Level 2
Estimated fair value	$ 342,500