BUSINESS SEGMENT INFORMATION - Net Sales by Region (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 1,402.5	$ 1,181.7	$ 2,663.4	$ 2,188.6
North America
Segment Reporting Information [Line Items]
Net sales	818.3	660.6	1,461.1	1,206.8
Western Europe
Segment Reporting Information [Line Items]
Net sales	313.2	263.2	660.2	505.4
Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	158.7	159.5	294.4	281.3
Rest of World
Segment Reporting Information [Line Items]
Net sales	112.3	98.4	247.7	195.1
Corporate and Other / Eliminations
Segment Reporting Information [Line Items]
Net sales	(2.6)	4.4	2.1	25.9
Corporate and Other / Eliminations \| North America
Segment Reporting Information [Line Items]
Net sales	23.0	37.1	39.3	48.7
Corporate and Other / Eliminations \| Western Europe
Segment Reporting Information [Line Items]
Net sales	0.2	0.9	0.4	18.4
Corporate and Other / Eliminations \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	0.5	3.1	0.9	11.5
Corporate and Other / Eliminations \| Rest of World
Segment Reporting Information [Line Items]
Net sales	(26.3)	(36.7)	(38.5)	(52.7)
AWP \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	751.1	593.0	1,390.0	1,065.4
AWP \| Operating Segments \| North America
Segment Reporting Information [Line Items]
Net sales	502.2	363.6	860.2	643.2
AWP \| Operating Segments \| Western Europe
Segment Reporting Information [Line Items]
Net sales	145.4	112.9	349.6	215.9
AWP \| Operating Segments \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	64.6	64.8	115.0	121.2
AWP \| Operating Segments \| Rest of World
Segment Reporting Information [Line Items]
Net sales	38.9	51.7	65.2	85.1
Cranes \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	335.3	303.8	649.3	567.7
Cranes \| Operating Segments \| North America
Segment Reporting Information [Line Items]
Net sales	159.7	121.5	290.8	247.1
Cranes \| Operating Segments \| Western Europe
Segment Reporting Information [Line Items]
Net sales	71.2	74.6	131.4	135.9
Cranes \| Operating Segments \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	37.9	56.6	77.6	80.8
Cranes \| Operating Segments \| Rest of World
Segment Reporting Information [Line Items]
Net sales	66.5	51.1	149.5	103.9
MP \| Operating Segments
Segment Reporting Information [Line Items]
Net sales	318.7	280.5	622.0	529.6
MP \| Operating Segments \| North America
Segment Reporting Information [Line Items]
Net sales	133.4	138.4	270.8	267.8
MP \| Operating Segments \| Western Europe
Segment Reporting Information [Line Items]
Net sales	96.4	74.8	178.8	135.2
MP \| Operating Segments \| Asia-Pacific
Segment Reporting Information [Line Items]
Net sales	55.7	35.0	100.9	67.8
MP \| Operating Segments \| Rest of World
Segment Reporting Information [Line Items]
Net sales	$ 33.2	$ 32.3	$ 71.5	$ 58.8