Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Net loss	$ (3.3)	$ (115.3)	$ (343.2)
Unrealized pension and postretirement benefit obligations	6.2	(9.5)	(14.5)
Reclassifications to net loss	(0.8)	1.0	(1.0)
Unrealized gain on plan amendment (see Note 16)	35.6	0.0	0.0
Unrealized foreign currency translation adjustments	5.5	(56.3)	(4.1)
Reclassifications to net loss (see Note 5)	(1.3)	0.0	0.0
Tax (expense) benefit on other comprehensive income (loss)	(16.5)	3.3	5.1
Total Comprehensive Income (Loss)	$ 25.4	$ (176.8)	$ (357.7)