Goodwill, Trade Names, and Other Intangible Assets - Acquired Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Intangible assets subject to amortization:
Gross Carrying Amount	$ 89,068	$ 101,068
Accumulated Amortization	52,782	52,500
Net Carrying Amount	36,286	48,568
Intangible assets not subject to amortization:
Trade names, indefinite-lived	5,900	5,900
Databases
Intangible assets subject to amortization:
Gross Carrying Amount	36,530	45,930
Accumulated Amortization	21,945	24,971
Net Carrying Amount	14,585	20,959
Customer relationships
Intangible assets subject to amortization:
Gross Carrying Amount	52,538	52,538
Accumulated Amortization	30,837	26,286
Net Carrying Amount	21,701	26,252
Trade names
Intangible assets subject to amortization:
Gross Carrying Amount	0	900
Accumulated Amortization	0	548
Net Carrying Amount	0	352
Software
Intangible assets subject to amortization:
Gross Carrying Amount	0	1,700
Accumulated Amortization	0	695
Net Carrying Amount	$ 0	$ 1,005