Acquisitions (Schedule Of Loans Acquired) (Details) (Allegiance Community Bank [Member], USD $) In Thousands, unless otherwise specified	Oct. 14, 2011
Allegiance Community Bank [Member]
Business Acquisition [Line Items]
Contractually required principal and interest at acquisition	$ 107,760
Contractual cash flows not expected to be collected (nonaccretabale discount)	(1,531)
Expected cash flows at acquisition	106,229
Interest component of expected cash flows (accretable discount)	17,318
Fair value of acquired loans	$ 88,911

Contractual cash flows not expected to be collected (nonaccretabale discount)

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- Definition

Contractually required principal and interest at acquisition

+ References

No definition available.

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- Definition

Fair value of acquired loans

+ References

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- Definition

Interest component of expected cash flows (accretable discount)

+ References

No definition available.

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Amount of cash flows expected to be collected at acquisition of acquired loans accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 15

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

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