DISCONTINUED OPERATIONS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax			$ 33.2	$ 1.3	$ (1.5)
Special charges			0.0	0.0
Disposed of by Sale | NATG
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax	$ 22.7		33.2	1.3	(1.5)
Income (loss) from discontinued operation, before income tax			31.7
Restitution receipts			15.0	1.9
Ongoing restitution proceedings			3.0	0.5
Tax effect of discontinued operation expense (benefit)			10.7	$ 0.5	(0.6)
Selling, distribution and administrative expenses					2.1
Discontinued Operations | NATG
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Additional exit costs, expected future charges	$ 0.5		$ 0.5
Germany | Continuing Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Buyout of outstanding lease obligation		$ 0.8			$ 0.8