Summary of Significant Accounting Policies - Recent Accounting Pronouncements Adopted (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Summary of Significant Accounting Policies
Retained earnings (accumulated deficit)	$ (1,809,414)	$ (1,841,153)
ASU 2020-06 | Cumulative effect period of adoption adjustment
Summary of Significant Accounting Policies
Unamortized debt discount			$ (27,500)
Retained earnings (accumulated deficit)			60,700
Capital in excess of par value			$ (81,900)