DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Income (Loss) From Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
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	$ (19.2)	$ 0.1	$ 2.4
Demag-Mobile Cranes Business | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	6.0	327.2	607.8
Cost of sales	(5.8)	(335.2)	(602.9)
Selling, general and administrative expenses	(0.9)	(75.6)	(117.5)
Disposal Group, Including Discontinued Operation, impairment	0.0	(82.1)	0.0
Asset impairments	(0.1)	0.0	(6.6)
Other income (expense)	0.0	(4.5)	(19.1)
Gain (loss) on disposition of discontinued operations	(0.8)	(170.2)	(138.3)
(Provision for) benefit from income taxes	0.4	14.8	7.9
Income (loss) from discontinued operations – net of tax	$ (0.4)	$ (155.4)	$ (130.4)