Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost for Pension (Details) - Pension Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Net Periodic Benefit Cost:
Service costs for benefits earned	$ 2.9	$ 2.6	$ 2.8
Interest costs on benefit obligation	10.2	9.0	9.3
Assumed return on plan assets	(15.7)	(15.7)	(15.3)
Amortization of net loss	4.6	5.4	4.9
Curtailment and settlement (gain) loss	0.0	0.0	(0.4)
Total	$ 2.0	$ 1.3	$ 2.1