Fair Value Measurements-Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Aug. 31, 2016	Nov. 30, 2015	Aug. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt	$ 1,058.5	$ 1,256.2	$ 1,010.8
Long-term Debt, Fair Value	1,155.3	1,325.6	1,081.9
Liabilities [Abstract]
Contingent consideration related to acquisition	30.1	27.1	27.7
Recurring [Member]
Assets [Abstract]
Cash and cash equivalents	134.2	112.6	108.4
Insurance contracts	106.6	104.1	102.0
Bonds and other long-term investments	10.0	8.5	7.8
Interest rate derivatives	5.5	2.5	3.5
Foreign currency derivatives	3.4	3.4	5.1
Total assets	259.7	231.1	226.8
Liabilities [Abstract]
Foreign currency derivatives	2.3	0.7	1.2
Interest rate derivatives		0.6	0.2
Contingent consideration related to acquisition	30.1	27.1	28.6
Total liabilities	32.4	28.4	30.0
Recurring [Member] | Level 1 [Member]
Assets [Abstract]
Cash and cash equivalents	134.2	112.6	108.4
Insurance contracts	0.0	0.0	0.0
Bonds and other long-term investments	10.0	8.5	7.8
Interest rate derivatives	0.0	0.0	0.0
Foreign currency derivatives	0.0	0.0	0.0
Total assets	144.2	121.1	116.2
Liabilities [Abstract]
Foreign currency derivatives	0.0	0.0	0.0
Total liabilities	0.0	0.0
Recurring [Member] | Level 2 [Member]
Assets [Abstract]
Cash and cash equivalents	0.0	0.0	0.0
Insurance contracts	106.6	104.1	102.0
Bonds and other long-term investments	0.0	0.0	0.0
Interest rate derivatives	5.5	2.5	3.5
Foreign currency derivatives	3.4	3.4	5.1
Total assets	115.5	110.0	110.6
Liabilities [Abstract]
Foreign currency derivatives	2.3	0.7	1.2
Interest rate derivatives		0.6	0.2
Total liabilities	2.3	1.3	1.4
Recurring [Member] | Level 3 [Member]
Assets [Abstract]
Cash and cash equivalents	0.0	0.0	0.0
Insurance contracts	0.0	0.0	0.0
Bonds and other long-term investments	0.0	0.0	0.0
Interest rate derivatives	0.0	0.0	0.0
Foreign currency derivatives	0.0	0.0	0.0
Total assets	0.0	0.0	0.0
Liabilities [Abstract]
Foreign currency derivatives	0.0	0.0	0.0
Contingent consideration related to acquisition	30.1	27.1	28.6
Total liabilities	$ 30.1	$ 27.1	$ 28.6