Intangible Assets - Finite-lived Intangible Assets Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Finite-lived Intangible Assets, Gross [Roll Forward]
Intangible assets, beginning of period			$ 35,240	$ 35,240	$ 35,240
Additions			0
Total intangible assets, end of period	$ 35,240		35,240		35,240
Accumulated Amortization [Roll Forward]
Accumulated amortization, January 1			(33,576)	(32,055)	(32,055)
Current year amortization	(309)	$ (380)	(929)	$ (1,141)	(1,521)
Total accumulated amortization	(34,505)		(34,505)		(33,576)
Net intangible assets
Net intangible assets, end of year	735		735		1,664
Infinite-lived intangible assets	6,892		6,892		6,892
Total net intangible assets	$ 7,627		$ 7,627		$ 8,556