Leases (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Lease renewal term	5 years
Lease termination term	1 year
Operating lease right-of-use assets	$ 11,017	$ 7,742
Operating lease liabilities	11,883
Rent expense	4,384	4,405	$ 4,578
Lease not yet commenced	2,071
Amortization and impairment	3,411	3,381	3,275
Interest accretion	973	$ 1,024	$ 1,303
Leased office space from affiliate of significant stockholder | Leased office space from affiliate of significant stockholder
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	1,891
Operating lease liabilities	1,937
Rent expense	$ 541
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms	1 year
Lease terms not yet commenced	2 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms	5 years
Lease terms not yet commenced	3 years