FAIR VALUE MEASUREMENT - ASSETS AND LIABILITIES, RECURRING (Details) - Fair Value, Recurring - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	$ 4.3	$ 47.1
Liabilities	16.5	24.1
Foreign exchange forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	4.3	40.2
Liabilities	4.3	4.6
Cross currency basis swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets		6.9
Liabilities	6.5
Interest rate swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities		10.8
Contingent considerations on acquisitions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	5.7	8.7
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0.0	0.0
Liabilities	0.0	0.0
Level 1 | Foreign exchange forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0.0	0.0
Liabilities	0.0	0.0
Level 1 | Cross currency basis swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets		0.0
Liabilities	0.0
Level 1 | Interest rate swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities		0.0
Level 1 | Contingent considerations on acquisitions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0.0	0.0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	4.3	47.1
Liabilities	10.8	15.4
Level 2 | Foreign exchange forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	4.3	40.2
Liabilities	4.3	4.6
Level 2 | Cross currency basis swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets		6.9
Liabilities	6.5
Level 2 | Interest rate swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities		10.8
Level 2 | Contingent considerations on acquisitions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	0.0	0.0
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0.0	0.0
Liabilities	5.7	8.7
Level 3 | Foreign exchange forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	0.0	0.0
Liabilities	0.0	0.0
Level 3 | Cross currency basis swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets		0.0
Liabilities	0.0
Level 3 | Interest rate swaps
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities		0.0
Level 3 | Contingent considerations on acquisitions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities	$ 5.7	$ 8.7