Goodwill and Other Intangible Assets Estimated Future Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Core Deposits Member
Estimated future amortization expense
Three months ending December 31, 2013	$ 780
Year ending December 31, 2014	2,868
Year ending December 31, 2015	1,405
Year ending December 31, 2016	281
Year ending December 31, 2017	112
Year ending December 31, 2018	0
Beyond 2018	0
Total Estimated Amortization Expense	5,446
Other Intangible Assets [Member]
Estimated future amortization expense
Three months ending December 31, 2013	231
Year ending December 31, 2014	879
Year ending December 31, 2015	839
Year ending December 31, 2016	803
Year ending December 31, 2017	770
Year ending December 31, 2018	740
Beyond 2018	2,487
Total Estimated Amortization Expense	6,749
Mortgage Service Rights [Member]
Estimated future amortization expense
Three months ending December 31, 2013	2,884
Year ending December 31, 2014	10,412
Year ending December 31, 2015	8,554
Year ending December 31, 2016	7,090
Year ending December 31, 2017	5,900
Year ending December 31, 2018	4,930
Beyond 2018	25,144
Total Estimated Amortization Expense	$ 64,914

Total Estimated Amortization Expense

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Amount of amortization expense expected to be recognized after the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

No definition available.

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Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

No definition available.

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Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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