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Borrowing Arrangements (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended		12 Months Ended		12 Months Ended						3 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2014 Swing Line Loans [Member]	Sep. 30, 2014 Letter Of Credit [Member]	Sep. 30, 2014 Eight Point Seven Five Senior Unsecured Notes [Member]	Sep. 30, 2013 Eight Point Seven Five Senior Unsecured Notes [Member]	Aug. 29, 2014 Seven Point Three Seven Five Senior Subordinated Notes [Member]	Sep. 30, 2014 Seven Point Three Seven Five Senior Subordinated Notes [Member]	Sep. 30, 2014 Seven Point Three Seven Five Senior Subordinated Notes [Member]	Sep. 30, 2013 Seven Point Three Seven Five Senior Subordinated Notes [Member]	Sep. 30, 2014 ABL Agreement [Member]	Sep. 30, 2013 ABL Agreement [Member]	Sep. 30, 2014 Minimum [Member]	Sep. 30, 2014 Maximum [Member]	Sep. 30, 2014 London Interbank Offered Rate (LIBOR) [Member] Minimum [Member] ABL Agreement [Member]	Sep. 30, 2014 London Interbank Offered Rate (LIBOR) [Member] Maximum [Member] ABL Agreement [Member]	Sep. 30, 2014 Base Rate [Member] Minimum [Member] ABL Agreement [Member]	Sep. 30, 2014 Base Rate [Member] Maximum [Member] ABL Agreement [Member]	Dec. 31, 2014 Subsequent Event [Member] London Interbank Offered Rate (LIBOR) [Member] Long-term Debt, Type [Member]	Nov. 25, 2014 Subsequent Event [Member] London Interbank Offered Rate (LIBOR) [Member] Long-term Debt, Type [Member]	Dec. 31, 2014 Subsequent Event [Member] London Interbank Offered Rate (LIBOR) [Member] Minimum [Member] Long-term Debt, Type [Member]
Long-term Debt	$ 545.6	$ 600.8				$ 178.3	$ 178.0		$ 365.0	$ 365.0	$ 420.0	$ 0	$ 0								$ 500.0
Debt Instrument, Description of Variable Rate Basis																						0.75%
Revolving credit facility amount				25	60							225
Potential increase size of the credit facility by an additional amount												150
Borrowing rate in addition to LIBOR																17500.00%	22500.00%	7500.00%	12500.00%	32500.00%
Debt Instrument, Maturity Date Range, Start																				Mar. 31, 2015
Debt Instrument, Periodic Payment, Principal																				1.25
Line of Credit Facility, Interest Rate at Period End												17500.00%
Agreement termination date	Dec. 18, 2017
Aggregate commitments availability												22.5
Aggregate commitments availability, percentage												10.00%
Outstanding letter of credit accrued fees and expenses												29.1
Excess availability reduced by outstanding borrowings, outstanding letters of credit and accrued fees and expenses												158.3
Senior subordinated notes bear interest						8.75%			7.375%	7.375%
Debt Instrument, Maturity Date						Sep. 01, 2020				Jun. 01, 2017
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage												3750.00%		2500.00%	3750.00%
Unamortized discount						1.7
Subordinated notes fair value						193.5			369.6	369.6
Extinguishment of Debt, Amount	22.5							55.0
Debt Instrument, Redemption Price, Percentage	103.00%							101.229%
Loss on early extinguishment of debt	1.0	1.4	1.5						(1.0)											(31.3)
Future maturities of outstanding borrowings
CY plus 1	46.2
CY plus 2	0.8
CY plus 3	320.3
CY plus 4	0
CY plus 5	0
CY plus 6 and more	180.0
Debt Instrument, Term														5 years	10 years					7 years
Payments of Debt Extinguishment Costs																				50
Payments of Financing Costs	$ 0	$ 0.7	$ 0																	$ 8.0

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments applied to principal.

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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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The cash outflow for incremental, external costs directly pertaining to an early extinguishment of debt, including legal costs and prepayment penalties, and excluding interest and repayment of debt principal.

+ References

No definition available.

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- Definition

The cash outflow for loan and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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