Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 20.7	$ (87.8)	$ (0.4)
Foreign currency translations
Realized net change during the period	0.0	(6.3)	5.9
Unrealized net change during the period	(8.2)	8.9	(5.5)
Unrealized net change on intercompany foreign debt during the period	(1.1)	6.2	0.4
Tax effect	(0.2)	(2.3)	(0.2)
Foreign currency translations, net of tax	(9.5)	6.5	0.6
Defined benefit plans:
Net gain (loss) arising during period	8.4	2.6	(8.9)
Amortization of net loss included in net periodic benefit cost	4.5	3.9	3.6
Settlement charge	0.0	0.4	0.0
Prior service credit arising during period	0.0	(0.1)	0.0
Amortization of prior service credits included in net periodic benefit cost	0.1	0.0	0.0
Tax effect	(0.6)	(0.1)	2.1
Post-retirement benefit plans, net of tax	(12.4)	(6.7)	3.2
Other comprehensive income (loss), net of tax	2.9	13.2	(2.6)
Comprehensive income (loss)	$ 23.6	$ (74.6)	$ (3.0)