Consolidating Guarantor and Non-Guarantor Financial Information (Schedule of Consolidating Statements of Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Net income (loss)	$ 9.7	$ 6.2	$ 10.8	$ 13.2
Income (loss) from continuing operations	9.7	7.6	10.8	2.6
Net income			10.8
Other comprehensive income (loss):
Minimum pension liability, net of tax	(3.0)	2.2	(6.0)	5.6
Other Comprehensive Income (Loss) from Consolidated Subsidiaries	0	0	0	0
Foreign currency translation	(2.0)	(1.1)	(4.0)	(1.8)
Other Comprehensive Income (Loss), Net of Tax	(5.0)	1.1	(10.0)	3.8
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	4.7	7.3	0.8	17.0
Issuer [Member]
Net income (loss)	9.7	6.2	10.8	13.2
Income (loss) from continuing operations		7.6		2.6
Net income			10.8
Other comprehensive income (loss):
Minimum pension liability, net of tax	(3.0)	2.2	(6.0)	5.6
Other Comprehensive Income (Loss) from Consolidated Subsidiaries	(2.0)	(1.1)	(4.0)	(1.8)
Foreign currency translation	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(5.0)	1.1	(10.0)	3.8
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	4.7	7.3	0.8	17.0
Guarantor Subsidiaries [Member]
Net income (loss)	21.8	24.5	36.7	35.0
Income (loss) from continuing operations		24.5		35.0
Net income			36.7
Other comprehensive income (loss):
Minimum pension liability, net of tax	0	0	0	0
Other Comprehensive Income (Loss) from Consolidated Subsidiaries	(2.0)	(1.1)	(4.0)	(1.8)
Foreign currency translation	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(2.0)	(1.1)	(4.0)	(1.8)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	19.8	23.4	32.7	33.2
Non-Guarantor Subsidiaries [Member]
Net income (loss)	0.5	1.8	1.2	1.6
Income (loss) from continuing operations		1.8		1.6
Net income			1.2
Other comprehensive income (loss):
Minimum pension liability, net of tax	0	0	0	0
Other Comprehensive Income (Loss) from Consolidated Subsidiaries	0	0	0	0
Foreign currency translation	(2.0)	(1.1)	(4.0)	(1.8)
Other Comprehensive Income (Loss), Net of Tax	(2.0)	(1.1)	(4.0)	(1.8)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(1.5)	0.7	(2.8)	(0.2)
Consolidation, Eliminations [Member]
Net income (loss)	(22.3)	(26.3)	(37.9)	(36.6)
Income (loss) from continuing operations		(26.3)		(36.6)
Net income			(37.9)
Other comprehensive income (loss):
Minimum pension liability, net of tax	0	0	0	0
Other Comprehensive Income (Loss) from Consolidated Subsidiaries	4.0	2.2	8.0	3.6
Foreign currency translation	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	4.0	2.2	8.0	3.6
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (18.3)	$ (24.1)	$ (29.9)	$ (33.0)