FAIR VALUE (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Financial Assets:
Total current derivative assets, Fair Value	$ 3,772	$ 3,772	$ 1,295
Financial Liabilities:
Skuad acquisition earnout liability (included within Other payables)	8,272	8,272	723
Current portion of Payeco deferred payment liability (included within Other payables)	3,830	3,830
Non-current portion of Payeco deferred payment liability (included within Other long-term liabilities)	8,424	8,424
Non-current portion of Skuad acquisition earnout liability (included within Other long-term liabilities)			8,021
General and administrative expenses
Financial Liabilities:
Unrealized loss on contingent consideration	124	499
Other financial income (expense), net
Financial Liabilities:
Unrealized loss on deferred payments	243	243
Recurring
Financial Assets:
U.S. Treasury Securities (included within Customer funds)	1,287,825	1,287,825	1,174,937
Total current derivative assets, Fair Value	5,063	5,063	2,034
Total financial assets	1,310,194	1,310,194	1,194,663
Financial Liabilities:
Skuad acquisition earnout liability (included within Other payables)	8,272	8,272	723
Current portion of Payeco deferred payment liability (included within Other payables)	3,830	3,830
Non-current portion of Payeco deferred payment liability (included within Other long-term liabilities)	8,424	8,424
Non-current portion of Skuad acquisition earnout liability (included within Other long-term liabilities)			8,021
Total financial liabilities	20,526	20,526	8,744
Recurring | Interest rate floors
Financial Assets:
Total current derivative assets, Fair Value	1,291	1,291	739
Total non current derivative assets	17,306	17,306	17,692
Recurring | Foreign currency forwards
Financial Assets:
Total current derivative assets, Fair Value	2,915	2,915	910
Recurring | Foreign currency net purchased options
Financial Assets:
Total current derivative assets, Fair Value	857	857	385
Recurring | Level 1
Financial Assets:
U.S. Treasury Securities (included within Customer funds)	1,287,825	1,287,825	1,174,937
Total financial assets	1,287,825	1,287,825	1,174,937
Recurring | Level 2
Financial Assets:
Total current derivative assets, Fair Value	5,063	5,063	2,034
Total financial assets	22,369	22,369	19,726
Recurring | Level 2 | Interest rate floors
Financial Assets:
Total current derivative assets, Fair Value	1,291	1,291	739
Total non current derivative assets	17,306	17,306	17,692
Recurring | Level 2 | Foreign currency forwards
Financial Assets:
Total current derivative assets, Fair Value	2,915	2,915	910
Recurring | Level 2 | Foreign currency net purchased options
Financial Assets:
Total current derivative assets, Fair Value	857	857	385
Recurring | Level 3
Financial Liabilities:
Skuad acquisition earnout liability (included within Other payables)	8,272	8,272	723
Current portion of Payeco deferred payment liability (included within Other payables)	3,830	3,830
Non-current portion of Payeco deferred payment liability (included within Other long-term liabilities)	8,424	8,424
Non-current portion of Skuad acquisition earnout liability (included within Other long-term liabilities)			8,021
Total financial liabilities	$ 20,526	$ 20,526	$ 8,744