Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill
Goodwill, beginning balance	$ 237,970
Foreign currency translation adjustments	7
Goodwill, ending balance	237,977
Contract talent solutions
Goodwill
Goodwill, beginning balance	134,287
Foreign currency translation adjustments	82
Goodwill, ending balance	134,369
Permanent placement talent solutions
Goodwill
Goodwill, beginning balance	26,131
Foreign currency translation adjustments	16
Goodwill, ending balance	26,147
Protiviti
Goodwill
Goodwill, beginning balance	77,552
Foreign currency translation adjustments	(91)
Goodwill, ending balance	$ 77,461