Business Segments - Schedule of Depreciation Expense by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting [Line Items]
Depreciation	$ 12,285	$ 13,006
Total contract talent solutions
Segment Reporting [Line Items]
Depreciation	5,965	6,498
Permanent placement talent solutions
Segment Reporting [Line Items]
Depreciation	2,022	2,099
Protiviti
Segment Reporting [Line Items]
Depreciation	$ 4,298	$ 4,409