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Subsequent Event (Details) (USD $)	Sep. 30, 2013 office	Sep. 30, 2012	Jul. 18, 2013 Bank of America, National Association branch	Nov. 26, 2013 Subsequent Event office WesternStates
Subsequent Event [Line Items]
Deposits			$ 1,500,000,000
Loans			11,000,000
Premium on deposits			2.60%
Number of branches acquired (in branches)			51
Number of offices (in offices)	182			232
Number of states in which entity operates				8
Assets	13,082,859,000	12,472,944,000		15,000,000,000
Deposits				$ 11,000,000,000

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.18)

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-Number 210

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-Article 7



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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



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The number of states the entity operates in as of the balance sheet date.

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