Advances From The Federal Home Loan Bank F H L B [Abstract]

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- Definition

Federal Home Loan Bank Prepaid Advances

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- Definition

Federal Home Loan Bank Prepaid Advances Under Put Option

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- Definition

Federal Home Loan Bank Weighted Average Interest Rate Under Put Option

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- Definition

The aggregate carrying amount of all Federal Home Loan Bank loans (advances).

+ Details

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- Definition

Describes the weighted average interest rate applicable to the specific advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Chapter 15

-Paragraph 17, 37

-IssueDate 2006-05-01

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

Reference 4: 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))

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

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- Definition

Increase or decrease in the aggregate carrying amount of all Federal Home Loan Bank loans from other Federal Home Loan Banks.

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- Definition

Income earned from prepayment fees charged for prepayment of certain Federal Home Loan Bank advances before their original maturity, net of hedging basis adjustments.

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Advances From The Federal Home Loan Bank ("FHLB") (Details) (USD $)	1 Months Ended	3 Months Ended					9 Months Ended	12 Months Ended
	Jan. 31, 2010	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Sep. 30, 2010	Jun. 30, 2010	Sep. 30, 2011	Dec. 31, 2010
Advances From The Federal Home Loan Bank ("FHLB") [Abstract]
Federal home loan bank advances		$ 205,000,000					$ 205,000,000	$ 550,000,000
Increase (Decrease) in Loans from Federal Home Loan Banks							(345,000,000)
Federal home loan bank prepaid advances		100,000,000	100,000,000	200,000,000	0	0	65,000,000
Federal home loan bank weighted average interest rate	3.49%	4.54%	4.33%	4.29%			4.54%
Federal home loan bank prepayment penalties	909,000	4,500,000					16,800,000
Federal home loan bank prepaid advances under put option		$ 205,000,000					$ 205,000,000	$ 550,000,000
Federal home loan bank weighted average interest rate under put option							3.42%	4.43%