Special Charges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016	May 31, 2017	Nov. 30, 2016	May 31, 2016	Nov. 30, 2015
Special Charges [Line Items]
Special charges	$ 4.7	$ 4.3	$ 13.0	$ 9.8
INDIA
Special Charges [Line Items]
Special charges		0.8	0.3	1.5
North America
Special Charges [Line Items]
Special charges				1.7
EMEA
Special Charges [Line Items]
Special charges		1.7	0.6	4.8
Special charges impairment			0.5
Special charges foreign exchange impact			1.3	0.4
Special charges liability					$ 8.9	$ 11.0	$ 13.2	$ 16.8
Special charges cash paid			(4.0)	(8.8)
Global
Special Charges [Line Items]
Special charges	1.8		7.3
PORTUGAL
Special Charges [Line Items]
Special charges	0.4		2.3
CHINA
Special Charges [Line Items]
Special charges	1.2		1.4
Asia Pacific
Special Charges [Line Items]
Special charges	1.1	1.8	1.5	1.8
MGE_Project [Member] | Minimum
Special Charges [Line Items]
Special charges			55.0
Expected cost savings special charges			30.0
MGE_Project [Member] | Maximum
Special Charges [Line Items]
Special charges			65.0
Expected cost savings special charges			40.0
Total plan expenses [Member]
Special Charges [Line Items]
Special charges			9.1
Total plan expenses [Member] | EMEA
Special Charges [Line Items]
Special charges			1.4
Total plan expenses [Member] | Global
Special Charges [Line Items]
Special charges			7.1
Total plan expenses [Member] | CHINA
Special Charges [Line Items]
Special charges			0.4
Total plan expenses [Member] | Asia Pacific
Special Charges [Line Items]
Special charges			0.2
Employee Severance Charges [Member]
Special Charges [Line Items]
Special charges	2.6	3.5	4.3	4.7
Employee Severance Charges [Member] | EMEA
Special Charges [Line Items]
Special charges				1.2
Special charges foreign exchange impact			1.1	0.4
Special charges liability					8.2	10.5	11.7	16.2
Special charges cash paid			(3.4)	(6.1)
Other exit costs [Member]
Special Charges [Line Items]
Special charges	2.1	0.8	8.7	5.1
Other exit costs [Member] | EMEA
Special Charges [Line Items]
Special charges			0.6	3.6
Special charges foreign exchange impact			0.2	0.0
Special charges liability					$ 0.7	$ 0.5	$ 1.5	$ 0.6
Special charges cash paid			(0.6)	(2.7)
total special charges [Member]
Special Charges [Line Items]
Special charges	4.7	4.3	13.0	9.8
Special charges cash paid			10.9
Consumer
Special Charges [Line Items]
Special charges	3.0	2.4	8.5	7.2
Consumer | total special charges [Member]
Special Charges [Line Items]
Special charges	3.0	2.4	8.5	7.2
Industrial
Special Charges [Line Items]
Special charges	1.7	1.9	4.5	2.6
Industrial | total special charges [Member]
Special Charges [Line Items]
Special charges	$ 1.7	$ 1.9	$ 4.5	$ 2.6