Share-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	$ 12,005	$ 9,165	$ 8,985
Total recognized tax deficiency related to share-based compensation	(729)	(607)	(773)
Selling, general and administrative expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	11,790	9,086	8,942
Costs of services provided
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	215	79	43
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	2,673	708	969
Restricted stock units and deferred stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	7,080	6,870	6,657
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	1,442	1,341	1,210
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total pre-tax share-based compensation expense charged against income	$ 810	$ 246	$ 149