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LEASES (Details) $ in Millions	1 Months Ended		3 Months Ended	6 Months Ended
	Oct. 31, 2021 USD ($) ft²	May 31, 2021 USD ($) ft²	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Leases
Options to renew				true
Total lease liabilities			$ 159.3	$ 159.3	$ 144.8
Additional right of use assets				6.8
Additional operating lease liabilities				$ 6.8
Additional operating right of use assets related to acquisitions			1.3
Additional operating lease liabilities related to acquisitions			$ 1.3
Minimum
Leases
Renewal term			1 year	1 year
Maximum
Leases
Renewal term			5 years	5 years
Option to terminate period				1 year
Office space In London
Leases
Area of office space leased | ft²		21,000
Initial term		69 months
Renewal term		60 months
Total lease liabilities		$ 9.5
Office space in Amsterdam
Leases
Area of office space leased | ft²	29,500
Total lease liabilities	$ 9.2
Initial term of lease	120 months
Renewal Term	60 months

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
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