BUSINESS SEGMENT INFORMATION - Net Sales by Region (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 1,228.5	$ 1,111.2	$ 3,891.9	$ 3,299.8
North America
Segment Reporting Information [Line Items]
Net sales	698.1	602.3	2,159.2	1,809.1
Western Europe
Segment Reporting Information [Line Items]
Net sales	266.1	251.7	926.3	757.1
Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	166.0	151.0	460.4	432.3
Rest of World
Segment Reporting Information [Line Items]
Net sales	98.3	106.2	346.0	301.3
Corporate and Other / Eliminations
Segment Reporting Information [Line Items]
Net sales	(2.1)	(7.3)	0.0	18.6
Corporate and Other / Eliminations \| North America
Segment Reporting Information [Line Items]
Net sales	15.3	26.1	54.6	74.8
Corporate and Other / Eliminations \| Western Europe
Segment Reporting Information [Line Items]
Net sales	0.1	0.0	0.5	18.4
Corporate and Other / Eliminations \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	0.3	0.4	1.2	11.9
Corporate and Other / Eliminations \| Rest of World
Segment Reporting Information [Line Items]
Net sales	(17.8)	(33.8)	(56.3)	(86.5)
AWP \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	634.2	556.7	2,024.2	1,622.1
AWP \| Operating Segments \| North America
Segment Reporting Information [Line Items]
Net sales	415.8	331.2	1,276.0	974.4
AWP \| Operating Segments \| Western Europe
Segment Reporting Information [Line Items]
Net sales	98.3	105.7	447.9	321.6
AWP \| Operating Segments \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	74.9	69.8	189.9	191.0
AWP \| Operating Segments \| Rest of World
Segment Reporting Information [Line Items]
Net sales	45.2	50.0	110.4	135.1
Cranes \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	301.2	301.9	950.5	869.6
Cranes \| Operating Segments \| North America
Segment Reporting Information [Line Items]
Net sales	150.6	126.6	441.4	373.7
Cranes \| Operating Segments \| Western Europe
Segment Reporting Information [Line Items]
Net sales	69.9	77.1	201.3	213.0
Cranes \| Operating Segments \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	42.5	36.9	120.1	117.7
Cranes \| Operating Segments \| Rest of World
Segment Reporting Information [Line Items]
Net sales	38.2	61.3	187.7	165.2
MP \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	295.2	259.9	917.2	789.5
MP \| Operating Segments \| North America
Segment Reporting Information [Line Items]
Net sales	116.4	118.4	387.2	386.2
MP \| Operating Segments \| Western Europe
Segment Reporting Information [Line Items]
Net sales	97.8	68.9	276.6	204.1
MP \| Operating Segments \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	48.3	43.9	149.2	111.7
MP \| Operating Segments \| Rest of World
Segment Reporting Information [Line Items]
Net sales	$ 32.7	$ 28.7	$ 104.2	$ 87.5