Goodwill and Other Intangible Assets (Goodwill Assets by Business Segment) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($)
Goodwill [Roll Forward]
January 1, 2015	$ 405,634
Goodwill Acquired	69,860
Impairment Loss	0
Goodwill Adjustments	(3,733)
December 31, 2015	471,761
Community banking
Goodwill [Roll Forward]
January 1, 2015	331,752
Goodwill Acquired	69,860
Impairment Loss	0
Goodwill Adjustments	0
December 31, 2015	401,612
Specialty finance
Goodwill [Roll Forward]
January 1, 2015	41,768
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	(3,733)
December 31, 2015	38,035
Wealth management
Goodwill [Roll Forward]
January 1, 2015	32,114
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
December 31, 2015	$ 32,114

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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