XML 22 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8

Subsequent Events (Details) (Unsecured Debt [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013 Revolving Credit Facility [Member]	Apr. 15, 2014 Revolving Credit Facility [Member] Subsequent Event [Member]	Apr. 15, 2014 Letter of Credit Subfacility [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity	$ 125	$ 170	$ 40

X

- 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

X

- Details

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