Leases - Additional Information (Details) £ in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2026 GBP (£)	Jan. 01, 2026 GBP (£)	Dec. 31, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	$ 17,353	$ 14,403
Variable Lease, Cost	1,655	1,528
Operating Lease, Payments	15,609	10,691
Operating Lease, Incentive Payments Received	3,408	718
Future lease payments	$ 2,934
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	3 years
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	10 years
Forecast [Member] | London, United Kingdom
Lessee, Lease, Description [Line Items]
Future lease payments | £				£ 175,000
Operating Lease, Additional Cost | £			£ 12,000
Letter of Credit [Member]
Lessee, Lease, Description [Line Items]
Other Assets	$ 5,913				$ 5,886
Office Equipment [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	$ 1,550	$ 1,474