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Data Type:	xbrli:stringItemType
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Amount of mandatorily redeemable capital stock past the contractual redemption date due to outstanding activity.

No definition available.

Name:	us-gaap_FinancialInstrumentsSubjectToMandatoryRedemptionPastContractualRedemptionDateDueToOutstandingActivity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Amount of mandatorily redeemable capital stock maturing in year five following the date of the latest balance sheet.

No definition available.

Name:	us-gaap_FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFive
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Amount of mandatorily redeemable capital stock maturing in year four following the date of the latest balance sheet.

No definition available.

Name:	us-gaap_FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFour
Namespace Prefix:	us-gaap_
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Amount of mandatorily redeemable capital stock maturing in year three following the date of the latest balance sheet.

No definition available.

Name:	us-gaap_FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Amount of mandatorily redeemable capital stock maturing in year two following the date of the latest balance sheet.

No definition available.

Name:	us-gaap_FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Amount of mandatorily redeemable capital stock maturing within one year following the date of the latest balance sheet.

No definition available.

Name:	us-gaap_FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableWithinOneYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Interest expense incurred during the reporting period on capital securities issued by the reporting entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.8)
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

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Data Type:	xbrli:monetaryItemType
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Value of net shares reclassified to mandatorily redeemable capital stock.

No definition available.

Name:	us-gaap_NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue
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Data Type:	xbrli:monetaryItemType
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The cash outflow related to equity securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) that is (or are) initially more than one year (or the normal operating cycle, if longer) from the issuance date, or upon an event that is certain to occur beyond one year (or the normal operating cycle, if longer) from the issuance date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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Amount that would be paid, determined under the conditions specified in the contract, if the holder of the share has the right to redeem the shares.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109262807&loc=d3e22047-110879