Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

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

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt (Details) (USD $)			0 Months Ended		0 Months Ended		0 Months Ended		0 Months Ended		0 Months Ended
Debt (Details) (USD $)	Sep. 30, 2014	Oct. 03, 2014 Subsequent Event [Member]	Oct. 02, 2014 Subsequent Event [Member] Refinanced five-year revolving credit facility [Member]	Oct. 02, 2014 Subsequent Event [Member] Refinanced five-year revolving credit facility [Member]	Oct. 02, 2014 Subsequent Event [Member] Refinanced three-year revolving credit facility [Member]	Oct. 02, 2014 Subsequent Event [Member] Refinanced three-year revolving credit facility [Member]	Oct. 03, 2014 Subsequent Event [Member] Four-year revolving credit facility, expires October 3, 2018 [Member]	Oct. 03, 2014 Subsequent Event [Member] Four-year revolving credit facility, expires October 3, 2018 [Member]	Oct. 03, 2014 Subsequent Event [Member] Five-year revolving credit facility, expires October 3, 2019 [Member]	Oct. 03, 2014 Subsequent Event [Member] Five-year revolving credit facility, expires October 3, 2019 [Member]	Oct. 03, 2014 Subsequent Event [Member] Five-year revolving credit facility, expires June 14, 2017 [Member]	Oct. 03, 2014 Subsequent Event [Member] Five-year revolving credit facility, expires June 14, 2017 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 500,000,000		$ 750,000,000		$ 500,000,000		$ 750,000,000		$ 750,000,000
Debt Instrument, Term			5 years		3 years		4 years		5 years		5 years
Line of Credit Facility, Amount Outstanding	$ 0	$ 0