Allowance for Credit Losses - Off-balance Sheet Credit Exposures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for credit losses:
Beginning balance	$ 100
Credit loss expense	(142)	$ 0	$ 0
Ending balance	1,255	100
Impact of ASC 326 Adoption
Allowance for credit losses:
Beginning balance	$ 1,297
Ending balance		$ 1,297