FAIR VALUE (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
General and administrative expenses
FAIR VALUE
Unrealized loss on contingent consideration	$ 169
Recurring
FAIR VALUE
U.S. Treasury Securities (included within Customer funds)	1,061,214
Derivative assets (included within Other current assets)	508
Total financial assets	1,061,722
Derivative liabilities (included within Other payables)	5
Skuad acquisition earnout liability	5,452
Total financial liabilities	5,457
Warrant liability		$ 8,555
Recurring | Foreign currency forwards
FAIR VALUE
Derivative assets (included within Other current assets)	507
Recurring | Foreign currency net purchased options
FAIR VALUE
Derivative assets (included within Other current assets)	1
Derivative liabilities (included within Other payables)	5
Recurring | Level 1
FAIR VALUE
U.S. Treasury Securities (included within Customer funds)	1,061,214
Total financial assets	1,061,214
Warrant liability		$ 8,555
Recurring | Level 2
FAIR VALUE
Derivative assets (included within Other current assets)	508
Total financial assets	508
Derivative liabilities (included within Other payables)	5
Total financial liabilities	5
Recurring | Level 2 | Foreign currency forwards
FAIR VALUE
Derivative assets (included within Other current assets)	507
Recurring | Level 2 | Foreign currency net purchased options
FAIR VALUE
Derivative assets (included within Other current assets)	1
Derivative liabilities (included within Other payables)	5
Recurring | Level 3
FAIR VALUE
Skuad acquisition earnout liability	5,452
Total financial liabilities	$ 5,452