Average life of investment grade debt securities.

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- Definition

Average percentage of LTV.

+ References

No definition available.

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- Definition

Callable Securities At Carrying Value

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No definition available.

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- Definition

Fair value percentage of held-to-maturity security against par value.

+ References

No definition available.

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- Definition

Held to maturity assets fico score average.

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No definition available.

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- Definition

Held-to-maturity securities, acquired price percentage.

+ References

No definition available.

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- Definition

Investment contractual cash flows guaranteed by banks.

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No definition available.

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- Definition

Investment contractual cash flows guaranteed by government.

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No definition available.

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- Definition

Investment security classified as held to maturity number.

+ References

No definition available.

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- Definition

Securities backed by whole loans.

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No definition available.

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- Definition

Securities Issued by Government or Government Sponsored Agencies and Enterprises Percentage.

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No definition available.

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- Definition

Weighted average life of investment grade debt securities.

+ References

No definition available.

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- Definition

Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as available-for-sale that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

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- Definition

Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as held-to-maturity that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable.

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

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- Definition

Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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-Name Accounting Standards Codification

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Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity.

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Amount before tax of other than temporary impairment (OTTI) on investment in held-to-maturity debt security, recognized in other comprehensive loss, attributable to parent entity.

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Investment Securities - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Average life of investment grade debt securities, years	3 years 9 months 18 days
Gross unrealized holding losses	$ 0
Book value of the bond	1,464,000us-gaap_HeldToMaturitySecurities		1,528,000us-gaap_HeldToMaturitySecurities
Credit-related impairment loss on investment securities held-to-maturity	0	0
Investment securities pledged as collateral	2,990,000,000		3,110,000,000
Investment in FHLB stock, impairment losses	0
United States [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities issued by U.S. government percentage	82.00%
Government agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Agency bond callable	140,900,000
CMO's / REMIC's - residential [Member]
Schedule of Available-for-sale Securities [Line Items]
CMOs/REMICs backed by whole loans issued by private-label companies (non-government sponsored)	304,000
Investment security classified as held-to-maturity, number	1
Held-to-Maturity securities, average FICO score	715
Held-to-Maturity securities, acquired price, percentage	98.25%
Average percentage of LTV	71.00%
Average life of investment grade debt securities, years	30 years
Current fair value percentage of Held-to-Maturity security against par value	78.76%
Investment contractual cash flows guaranteed by Government, percentage	99.99%
Investment contractual cash flows guaranteed by banks, percentage	1.00%
Alt-A bond [Member]
Schedule of Available-for-sale Securities [Line Items]
Book value of the bond	1,500,000
Net impairment losses	$ 1,900,000
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted-average life of investment grade debt securities, years	8 years 4 months 24 days