Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($)
Goodwill
Beginning balance	$ 237,180
Acquisitions	12,418
Foreign currency translation adjustments	1,668
Ending balance	251,266
Goodwill recognized across the subsidiaries	251,266
Adamantia
Goodwill
Ending balance	12,400
Goodwill recognized across the subsidiaries	12,400
Contract talent solutions
Goodwill
Beginning balance	133,938
Acquisitions	1,205
Foreign currency translation adjustments	514
Ending balance	135,657
Goodwill recognized across the subsidiaries	135,657
Permanent placement talent solutions
Goodwill
Beginning balance	26,063
Acquisitions	235
Foreign currency translation adjustments	100
Ending balance	26,398
Goodwill recognized across the subsidiaries	26,398
Protiviti
Goodwill
Beginning balance	77,179
Acquisitions	10,978
Foreign currency translation adjustments	1,054
Ending balance	89,211
Goodwill recognized across the subsidiaries	$ 89,211