Other Real Estate Owned - Schedule of Other Real Estate Owned Segregated into Non-Covered and Covered Properties (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	$ 41,486	$ 88,546
Real estate acquired for development or resale	11,556	9,206
Other foreclosed property	905us-gaap_OtherForeclosedAssets	1,421us-gaap_OtherForeclosedAssets
Total other real estate owned and foreclosed property	53,947	99,173
Non-covered Properties [Member]
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	18,614	28,072
Real estate acquired for development or resale	11,556	9,206
Other foreclosed property	81	93
Total other real estate owned and foreclosed property	30,251	37,371
Covered Properties [Member]
Real Estate Properties [Line Items]
Real estate owned acquired by foreclosure	22,872	60,474
Other foreclosed property	824	1,328
Total other real estate owned and foreclosed property	$ 23,696	$ 61,802

Carrying amount as of the balance sheet date of assets other than real property that were received in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance.

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- Definition

Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(4))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ 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 FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4437-111522

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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule III

-Article 5

+ Details

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- Definition

For banks, amount of real estate assets held for development or sale by the consolidated entity.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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