XML 164 R117.htm IDEA: XBRL DOCUMENT v2.4.1.9

Short-Term Debt by Weighted Average Interest Rates and Collateral Type (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Short-term Debt [Line Items]
Amount Borrowed	$ 1,793,825us-gaap_ShortTermBorrowings	$ 862,763us-gaap_ShortTermBorrowings
Weighted Average Interest Rate	1.73%us-gaap_ShortTermDebtWeightedAverageInterestRate	1.42%us-gaap_ShortTermDebtWeightedAverageInterestRate
Weighted Average Days Until Maturity	112 days	61 days
Residential Loans
Short-term Debt [Line Items]
Amount Borrowed	1,076,188us-gaap_ShortTermBorrowings / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_ResidentialMortgageMember	184,789us-gaap_ShortTermBorrowings / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_ResidentialMortgageMember
Weighted Average Interest Rate	1.74%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_ResidentialMortgageMember	1.71%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_ResidentialMortgageMember
Weighted Average Days Until Maturity	156 days	228 days
Commercial Loans
Short-term Debt [Line Items]
Amount Borrowed	109,128us-gaap_ShortTermBorrowings / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_CommercialLoanMember
Weighted Average Interest Rate	3.66%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_CommercialLoanMember
Weighted Average Days Until Maturity	185 days	0 days
Real Estate Securities
Short-term Debt [Line Items]
Amount Borrowed	$ 608,509us-gaap_ShortTermBorrowings / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_RealEstateInvestmentMember	$ 677,974us-gaap_ShortTermBorrowings / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_RealEstateInvestmentMember
Weighted Average Interest Rate	1.38%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_RealEstateInvestmentMember	1.34%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAxis = us-gaap_RealEstateInvestmentMember
Weighted Average Days Until Maturity	20 days	15 days

X

- Definition

Debt Instrument Average, Maturity Term

+ References

No definition available.

+ Details

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13)

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



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.(a),16(a)(1))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Subparagraph a(1)

-Article 7



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph 2, 3

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- Definition

Weighted average interest rate of short-term debt outstanding.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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