Supplemental Cash Flow Disclosures - Non-cash Investing and Financing Activities (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013
Cash paid during the period for:
Interest	$ 14,747	$ 18,115
Income Taxes Paid, Net	7,700	3,080
Non-cash investing and financing activities:
Loans Transferred to Other Real Estate Owned and Repossessions	4,239	8,847
Fair value of loans transferred from held to maturity to held for sale	3,035	20,135
Gross increase (decrease) in market value adjustment to securities available for sale	16,812	(31,866)
Investments committed to purchase not settled	1,000	0
Unsettled treasury stock repurchases	$ 0	$ 1,670

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Gross increase in market value adjustment to securities available for sale.

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- Definition

Loans Transferred to Other Real Estate Owned and Repossessions

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No definition available.

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- Definition

Unsettled treasury stock repurchases

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No definition available.

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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- Definition

The amount of cash paid for interest during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

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-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (e)

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- Definition

The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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- Definition

Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions.

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