Deposits - Maturity Distribution for Certificates of Deposit of More Than Specified Amount (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Contractual Maturities Of Time Deposits 100000 Or More Disclosures [Abstract]
Up to three months	$ 57,469,000	$ 100,460,000
Three months to six months	41,237,000	51,762,000
Six months to twelve months	93,920,000	64,633,000
Over twelve months	271,013,000	257,715,000
Total certificates of deposit	$ 463,639,000	$ 474,570,000

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The amount of contractual maturities of domestic and foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more, after twelve months from the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6479006&loc=d3e64164-112818

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

-Publisher SEC

-Name Industry Guide

-Number 3

-Section V

-Paragraph D

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- Definition

The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more.

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+ Details

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