Total debt to Adjusted EBITDA ratio allowable for debt covenant compliances.

No definition available.

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- Definition

Letters Of Credit And Surety Bonds Outstanding

+ References

No definition available.

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- Definition

Percentage of notes priced on par value

+ References

No definition available.

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- Definition

Senior Note Maturity Date

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No definition available.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Increase for additional borrowings on the debt instrument during the period.

+ References

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

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-Name Regulation S-X (SX)

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The effective interest rate at the end of the reporting period.

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-Name Regulation S-X (SX)

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-Section 02

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-Subparagraph (SX 210.5-02.22(a)(1))

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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Interest rate stated in the contractual debt agreement.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 4

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-Subparagraph (SX 210.5-02.22(a)(2))

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Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective interest rate fair value hedge that is amortized upon discontinuation of the interest rate fair value hedge.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Topic 815

-SubTopic 25

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-Paragraph 9

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter).

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Subparagraph (SX 210.5-02.19(b),22(b))

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 4

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-Subparagraph (SX 210.5-02.19(b),22(b))

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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-Subparagraph (SX 210.7-03.16(a))

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Amount of long-term debt maturities after year five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 47

-Paragraph 10

-Subparagraph b

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-Topic 470

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Amount of long-term debt maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates.

+ References

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Amount of long-term debt maturing in year five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Amount of long-term debt maturing in year four following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Amount of long-term debt maturing in year three following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

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Amount of long-term debt maturing in year two following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Long-Term Debt (Narrative) (Details) (USD $) In Millions, unless otherwise specified				0 Months Ended			0 Months Ended			0 Months Ended				0 Months Ended			0 Months Ended											0 Months Ended				0 Months Ended			0 Months Ended			0 Months Ended			0 Months Ended			0 Months Ended					0 Months Ended	3 Months Ended			0 Months Ended	3 Months Ended			0 Months Ended	1 Months Ended			0 Months Ended												0 Months Ended
	Sep. 30, 2011	Aug. 12, 2011	Sep. 30, 2010	Dec. 22, 2003 Fixed Rate Senior Notes, Series B [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series B [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series B [Member]	Dec. 22, 2003 Fixed Rate Senior Notes, Series C [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series C [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series C [Member]	Dec. 22, 2003 Fixed Rate Senior Notes, Series D [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series D [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series D [Member]	Dec. 21, 2005 Fixed Rate Senior Notes, Series E And F [Member]	Dec. 21, 2005 Fixed Rate Senior Notes, Series E [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series E [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series E [Member]	Dec. 21, 2005 Fixed Rate Senior Notes, Series F [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series F [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series F [Member]	Jan. 18, 2007 Fixed Rate Senior Notes, Series I [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series I-1 [Member]	Jun. 30, 2011 Fixed Rate Senior Notes, Series I-1 [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series I-1 [Member]	Jan. 18, 2007 Fixed Rate Senior Notes, Series I-1 [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series I-2 [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series I-2 [Member]	Jan. 18, 2007 Fixed Rate Senior Notes, Series I-2 [Member]	May 11, 2007 Fixed Rate Senior Notes, Series J [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series J [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series J [Member]	Aug. 04, 2008 Fixed Rate Notes Maturing 2018 And 2020 And Floating Rate Notes Maturing 2018 [Member]	Apr. 04, 2008 Fixed Rate Senior Notes Maturing 2018 [Member]	Sep. 30, 2011 Fixed Rate Senior Notes Maturing 2018 [Member]	Sep. 30, 2010 Fixed Rate Senior Notes Maturing 2018 [Member]	Apr. 04, 2008 Floating Rate Senior Notes Maturing 2018 [Member]	Sep. 30, 2011 Floating Rate Senior Notes Maturing 2018 [Member]	Sep. 30, 2010 Floating Rate Senior Notes Maturing 2018 [Member]	Apr. 04, 2008 Fixed Rate Senior Notes Maturing 2020 [Member]	Sep. 30, 2011 Fixed Rate Senior Notes Maturing 2020 [Member]	Sep. 30, 2010 Fixed Rate Senior Notes Maturing 2020 [Member]	Jul. 26, 2010 4.95% Senior Notes Maturing 2020 [Member]	Sep. 30, 2011 4.95% Senior Notes Maturing 2020 [Member]	Sep. 30, 2010 4.95% Senior Notes Maturing 2020 [Member]	Jul. 26, 2010 Fixed Rate Senior Notes maturing 2039 [Member]	Aug. 14, 2009 Fixed Rate Senior Notes maturing 2039 [Member]	Sep. 30, 2011 Fixed Rate Senior Notes maturing 2039 [Member]	Sep. 30, 2010 Fixed Rate Senior Notes maturing 2039 [Member]	May 28, 2009 Fixed Rate Senior Notes, Series 2009 [Member]	May 28, 2009 Fixed Rate Senior Notes, Series 2009A [Member]	Dec. 31, 2010 Fixed Rate Senior Notes, Series 2009A [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series 2009A [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series 2009A [Member]	May 28, 2009 Fixed Rate Senior Notes, Series 2009B [Member]	Dec. 31, 2010 Fixed Rate Senior Notes, Series 2009B [Member]	Sep. 30, 2011 Fixed Rate Senior Notes, Series 2009B [Member]	Sep. 30, 2010 Fixed Rate Senior Notes, Series 2009B [Member]	Jul. 18, 2008 2008 Revolving Credit Agreement [Member]	Jul. 18, 2008 2008 Revolving Credit Agreement [Member]	Sep. 30, 2011 2008 Revolving Credit Agreement [Member]	Sep. 30, 2010 2008 Revolving Credit Agreement [Member]	Jul. 27, 2010 2010 Revolving Credit Agreement [Member]	Sep. 30, 2011 2010 Revolving Credit Agreement [Member]	Sep. 30, 2010 2010 Revolving Credit Agreement [Member]	Sep. 30, 2011 2010 Term Loan [Member]	Sep. 30, 2010 2010 Term Loan [Member]	Apr. 04, 2008 3 Month LIBOR [Member] Floating Rate Senior Notes Maturing 2018 [Member]	Jul. 18, 2008 LIBOR [Member] 2008 Revolving Credit Agreement [Member]	Jul. 27, 2010 LIBOR [Member] 2010 Revolving Credit Agreement [Member]	Jul. 18, 2008 Federal Fund Rate [Member] 2008 Revolving Credit Agreement [Member]	Jul. 27, 2010 Federal Fund Rate [Member] 2010 Revolving Credit Agreement [Member]	Jul. 18, 2008 Base CD Rate [Member] 2008 Revolving Credit Agreement [Member]	Jul. 27, 2010 Adjusted LIBOR Rate [Member] 2010 Revolving Credit Agreement [Member]	May 28, 2009 Maximum [Member] Fixed Rate Senior Notes, Series 2009 [Member]	Jul. 27, 2010 Maximum [Member] 2010 Revolving Credit Agreement [Member]	May 28, 2009 Additional Interest [Member] Maximum [Member] Fixed Rate Senior Notes, Series 2009 [Member]	May 28, 2009 Additional Interest [Member] Minimum [Member] Fixed Rate Senior Notes, Series 2009 [Member]
Debt Instrument [Line Items]
Senior notes	$ 750.0			$ 145.0		$ 29.0	$ 50.0	$ 50.0	$ 50.0	$ 75.0	$ 32.1	$ 42.9	$ 175.0	$ 100.0	$ 100.0	$ 100.0	$ 75.0	$ 75.0	$ 75.0	$ 100.0	$ 75.0		$ 75.0	$ 75.0	$ 25.0	$ 25.0	$ 25.0	$ 100.0	$ 100.0	$ 100.0	$ 964.5	$ 577.5	$ 577.5	$ 577.5	$ 20.0	$ 20.0	$ 20.0	$ 67.0	$ 67.0	$ 67.0	$ 300.0	$ 300.0	$ 300.0	$ 450.0	$ 300.0	$ 450.0	$ 450.0	$ 100.0	$ 50.0		$ 50.0	$ 50.0	$ 50.0		$ 50.0	$ 50.0
Debt instrument interest rate																																									4.96%			6.47%
Senior notes, Interest Rate					0.00%	4.24%		5.43%	5.43%		4.76%	4.76%			5.57%	5.57%		5.43%	5.43%			5.56%	5.56%		5.58%	5.58%			5.93%	5.93%			7.29%	7.29%		2.80%	2.98%		7.39%	7.39%		4.95%	4.95%			6.63%	6.63%				7.45%	7.45%			7.60%	7.60%			0.00%	1.30%		2.62%	2.81%	2.75%	2.81%
Stated interest rate				4.24%			5.43%			4.76%				5.57%			5.43%							5.56%			5.58%	5.93%				7.29%						7.39%			4.95%			6.625%	6.625%				7.45%				7.60%
Debt instrument basis rate																																																																		2.54%	1.50%	2.50%	0.50%	0.50%	1.00%	1.00%
Senior notes maturity date				December 2010			December 2013			December 2013				2015			2012											2022													2020			2039	2039					2009				2009
Maturity date of senior notes																																Aug. 15, 2018			Aug. 15, 2018			Aug. 15, 2020											May 01, 2019				May 01, 2021
Gain on interest rate swap designated as fair value hedge	(18.6)	18.8
Total debt ratio to adjusted EBITDA																																																																									3.5	3.75	4	3.5
Maximum capacity of revolving credit agreement																																																									400.0	400.0			300.0
Revolving credit facility maturity date																																																									July 18, 2011				July 27, 2015
Commitment fee percentage																																																										0.25%			0.35%
Term loan																																																													200.0			190.0	200.0
Additional notes issued																																												150.0
Percentage of notes priced on par value																																									99.84%			102.439%	99.702%
Letters of credit and surety bonds outstanding	24.6		23.8
Aggregate maturities of long term debt - 2012	30.7
Aggregate maturities of long term debt - 2013	105.7
Aggregate maturities of long term debt - 2014	90.7
Aggregate maturities of long term debt - 2015	173.2
Aggregate maturities of long term debt - 2016	100.0
Aggregate maturities of long term debt - thereafter	$ 1,681.2