Other Real Estate Owned and Property Acquired in Settlement of Loans (Real Estate Owned) (Details) (USD $)	3 Months Ended
Mar. 31, 2013 assets	Mar. 31, 2012
Real Estate Acquired Through Foreclosure [Roll Forward]
Real estate acquired in settlement of loans, beginning of period	$ 62,796,000	$ 110,009,000
Plus: New real estate acquired in settlement of loans	3,969,000	8,935,000
Less: Sales of real estate acquired in settlement of loans	(20,239,000)	(10,874,000)
Less: Write-downs and net loss on sales charged to expense	(219,000)	(3,877,000)
Real estate acquired in settlement of loans, end of period	46,307,000	104,193,000
Number of assets under contract for sale	25
Net carrying value of assets under contract for sale	$ 7,300,000

This amount represents new real estate acquired in settlement of loans (net of write downs) during the period.

No definition available.

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- Definition

Real Estate Acquired Through Foreclosure, Sale Commitment, Carrying Amount

+ References

No definition available.

+ Details

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- Definition

Real Estate Acquired Through Foreclosure, Sale Commitment, Number of Contracts

+ References

No definition available.

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- Definition

This amount represents write-downs on the existing real estate acquired through foreclosure and net gain (loss) on the sales of real estate acquired through foreclosure during the period.

+ References

No definition available.

+ Details

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- Definition

This amount represents sale of real estate acquired in settlement of loans during the period.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule III

-Article 5

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 28

-Article 12

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

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph f

-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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4437-111522

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 2, 9, 10, 11

-IssueDate 2006-05-01

-Chapter 11

-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.

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