Deposits - Total Deposits (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Percentage Change, Checking, non-interest bearing	(0.40%)
Percentage Change, Checking, interest bearing	8.20%
Percentage Change, Savings accounts	3.70%
Percentage Change, Certificates of deposit	3.00%
Percentage change, Total	4.10%
Checking, non-interest bearing	$ 262,480	$ 263,639
Checking, interest bearing	476,440	440,174
Savings accounts	961,686	927,074
Certificates of deposit	189,605	184,166
Total deposits	$ 1,890,211	$ 1,815,053

Certificate of Deposit Increase (Decrease), Percentage

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- Definition

Deposits Increase (Decrease), Percentage.

+ References

No definition available.

+ Details

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- Definition

Interest Bearing Checking Deposit Increase (Decrease), Percentage.

+ References

No definition available.

+ Details

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- Definition

Non Interest Bearing Checking Deposit Increase (Decrease), Percentage.

+ References

No definition available.

+ Details

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- Definition

Saving Accounts Deposit Increase (Decrease), Percentage

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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

+ Details

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- Definition

Amount of interest-bearing domestic certificate of deposit liabilities.

+ References

+ Details

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- Definition

Amount of interest-bearing domestic checking deposit liabilities.

+ References

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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

+ References

+ Details

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