ACQUISITIONS AND DISCONTINUED OPERATIONS - Income (Loss) from discontinued operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of discontinued operations – net of tax	$ 0.6	$ (16.1)	$ 2.6	$ (21.1)
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of discontinued operations	0.8		2.6
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	(0.2)		0.0
Gain (loss) on disposition of discontinued operations – net of tax	0.6		2.6
Demag-Mobile Cranes Business | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of discontinued operations	0.8	(20.5)	1.4	(27.7)
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	(0.2)	4.4	(0.4)	6.6
Gain (loss) on disposition of discontinued operations – net of tax	0.6	$ (16.1)	1.0	$ (21.1)
Materials Handling and Port Solutions Sale | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of discontinued operations	0.0		1.2
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	0.0		0.4
Gain (loss) on disposition of discontinued operations – net of tax	$ 0.0		$ 1.6