Goodwill And Other Intangible Assets (Goodwill Assets by Business Segment) (Detail) - USD ($) $ in Thousands		6 Months Ended
Jul. 02, 2015	Jun. 30, 2016
Goodwill [Roll Forward]
Beginning balance	$ 421,646	$ 471,761
Goodwill Acquired		11,427
Impairment Loss		0
Goodwill Adjustments		2,907
Ending balance		486,095
Community banking
Goodwill [Roll Forward]
Beginning balance		401,612
Goodwill Acquired		11,427
Impairment Loss		0
Goodwill Adjustments		1,354
Ending balance		414,393
Specialty finance
Goodwill [Roll Forward]
Beginning balance		38,035
Goodwill Acquired		0
Impairment Loss		0
Goodwill Adjustments		1,553
Ending balance		39,588
Wealth management
Goodwill [Roll Forward]
Beginning balance		32,114
Goodwill Acquired		0
Impairment Loss		0
Goodwill Adjustments		0
Ending balance		$ 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
-Subparagraph (a)
-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
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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- Definition

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

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- Definition

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
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

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

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