Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

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-Name Accounting Standards Codification

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-Section 50

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 7

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

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-Paragraph 1A

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Derivative [Line Items]
Derivatives gain (loss)	$ (2,700,000)	$ (3,600,000)
Loan Origination Commitments
Derivative [Line Items]
Committed fund loans for borrowers	439,900,000
Other Assets
Derivative [Line Items]
Derivatives asset, fair values	13,555,000		6,379,000
Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	(4,552,000)		(3,235,000)
Bank forward commitments outstanding	656,978,000		424,904,000
California \| Geographic Concentration Risk \| Properties Securing Loans Held for Sale
Derivative [Line Items]
Concentration risk percentage	78.80%
Interest Rate Swap Maturing on September 27, 2018 \| Cash Flow Hedging
Derivative [Line Items]
Derivatives, notional amount		50,000,000
Interest Rate Swap Maturing on January 30, 2022 \| Cash Flow Hedging
Derivative [Line Items]
Derivatives, notional amount		25,000,000
Interest rate swap \| Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	(415,000)		(235,000)
Bank forward commitments outstanding	75,000,000		50,000,000
Interest Rate Lock Commitment and Forward Contracts \| Not Designated as Hedging Instrument \| Other Assets
Derivative [Line Items]
Derivatives asset, fair values	13,600,000
Interest Rate Lock Commitment and Forward Contracts \| Not Designated as Hedging Instrument \| Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	(4,100,000)
Mandatory forward commitments \| Other Assets
Derivative [Line Items]
Derivatives asset, fair values	0		629,000
Mandatory forward commitments \| Accrued Expenses and Other Liabilities
Derivative [Line Items]
Derivatives liability, fair values	(4,039,000)		(2,803,000)
Bank forward commitments outstanding	572,000,000		364,829,000
Mandatory forward commitments \| Not Designated as Hedging Instrument
Derivative [Line Items]
Bank forward commitments outstanding	$ 572,000,000