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FAIR VALUE MEASUREMENT - Summary of changes in the fair value of the company's Level 3 financial liabilities (Details) - Level 3 - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2021
Changes in fair value of level 3 financial liabilities |  |
Balance at the beginning of the period | $ 32.1 | $ 32.7
Settlements | (5.7) | (6.5)
Foreign Currency Translation | 0.2 | 0.4
Balance at the end of the period | 26.6 | 26.6
Contingent consideration liabilities |  |
Changes in fair value of level 3 financial liabilities |  |
Balance at the beginning of the period | 32.1 | 32.7
Settlements | (5.7) | (6.5)
Foreign Currency Translation | 0.2 | 0.4
Balance at the end of the period | $ 26.6 | $ 26.6

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- Definition Amount of foreign currency translation gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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