Intangible Assets - Finite-lived Intangible Assets Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-lived Intangible Assets
Finite-lived intangible assets, beginning of period	$ 35,242	$ 34,242
Additions	0
Total finite-lived intangible assets, end of period	35,242	35,242	$ 34,242
Accumulated Amortization
Accumulated amortization, beginning of period	(34,815)	(33,576)
Current year amortization	(427)	(1,239)	(1,521)
Total accumulated amortization	(35,242)	(34,815)	$ (33,576)
Net intangible assets
Net finite-lived intangible assets, end of period	0	427
Infinite-lived intangible assets	0	6,890
Total net intangible assets	$ 0	$ 7,317