Acquisition-related Costs Table (Details) $ in Millions	3 Months Ended
	Feb. 29, 2020 USD ($)
Acquisition-related Costs Reserve [Roll Forward]
Balance at November 30, 2019	$ 120.8
Add: Costs incurred	1.8
Revision to prior estimates	(0.9)
Less: ASC Topic 842 adjustment	(6.6)
Less: Amount paid	(85.1)
Balance at February 29, 2020	30.0
Employee Severance and Other Termination Benefits
Acquisition-related Costs Reserve [Roll Forward]
Balance at November 30, 2019	0.0
Add: Costs incurred	0.0
Revision to prior estimates	0.0
Less: ASC Topic 842 adjustment	0.0
Less: Amount paid	0.0
Balance at February 29, 2020	0.0
Contract Termination Costs
Acquisition-related Costs Reserve [Roll Forward]
Balance at November 30, 2019	8.2
Add: Costs incurred	0.0
Revision to prior estimates	(0.8)
Less: ASC Topic 842 adjustment	(6.6)
Less: Amount paid	(0.8)
Balance at February 29, 2020	0.0
Other
Acquisition-related Costs Reserve [Roll Forward]
Balance at November 30, 2019	112.6
Add: Costs incurred	1.8
Revision to prior estimates	(0.1)
Less: ASC Topic 842 adjustment	0.0
Less: Amount paid	(84.3)
Balance at February 29, 2020	$ 30.0