Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue, Performance Obligation [Abstract]
Fee revenues	$ 121,657	$ 108,691	$ 98,903
Other income (out-of-scope of ASC 606)	3,325	1,000	1,538
Total fee revenue and other income	124,982	109,691	100,441
Information Services
Revenue, Performance Obligation [Abstract]
Fee revenues	120,227	107,322	97,745
Processing fees
Revenue, Performance Obligation [Abstract]
Fee revenues	76,470	74,589	74,638
Financial fees
Revenue, Performance Obligation [Abstract]
Fee revenues	43,757	32,733	23,107
Financial fees
Revenue, Performance Obligation [Abstract]
Fee revenues	$ 1,430	$ 1,369	$ 1,158