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Deposits - Total Deposits (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Banking And Thrift [Abstract]
Percentage change, Checking, non-interest bearing	0.80%
Percentage change, Checking, interest bearing	12.60%
Percentage change, Savings accounts	4.20%
Percentage change, Certificate of deposit	(6.50%)
Percentage change, Total	4.10%
Checking, non-interest bearing	$ 176,700	$ 175,239
Checking, interest bearing	379,273	336,911
Savings accounts	791,469	759,910
Certificates of deposit	199,104	212,943
Total deposits	$ 1,546,546	$ 1,485,003

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- Definition

Percentage change in deposit accounts.

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- Definition

Percentage of non interest bearing domestic deposits to deposits checking.

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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ 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 210.9-03.12)

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-Publisher SEC

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-Section 03

-Paragraph 12

-Article 9

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Amount of interest-bearing domestic certificate of deposit liabilities.

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Amount of interest-bearing domestic checking deposit liabilities.

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Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

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The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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