Business Segments - Depreciation Expense by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Depreciation	$ 50,031	$ 52,053	$ 51,364
Contract Talent Solutions
Segment Reporting Information [Line Items]
Depreciation	24,488	26,230	25,803
Permanent Placement Talent Solutions
Segment Reporting Information [Line Items]
Depreciation	7,958	8,533	8,786
Protiviti
Segment Reporting Information [Line Items]
Depreciation	$ 17,585	$ 17,290	$ 16,775