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Mortgage loans on real estate accretion of discount.

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No definition available.

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Mortgage Loans on real estate final maturity date on demand.

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Mortgage loans on real estate rates.

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No definition available.

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Total carrying amount of mortgage loans as of the balance sheet date.

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The carrying amount of the outstanding balance due under the mortgage loan.

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The amount of principal collected on mortgage loans on real estate during the reporting period.

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Amount of the contractual principal due at the origination of the mortgage loan (face amount).

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- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

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- Definition

Total amount of new mortgage loans on real estate during the reporting period.

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Total amount of additions to mortgage loans other than new loans during the reporting period.

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Description of the contractual payment terms of the loan receivable including whether principal and interest is payable at a level or varying amount over the life of the loan, the amount of any balloon payment required at maturity, and any prepayment penalties.

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Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date.

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Amount of prior lien on the real estate that secures the mortgage loan.

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Amount of reserve for write-down of a mortgage loan on real estate.

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Mortgage Loans on Real Estate (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Mortgage Loans on Real Estate [Line Items]
Prior Liens	$ 516,667
Face Amount of Mortgages	232,416
Carrying Amount of Mortgages	143,989
Principal Amount of Loans subject to delinquent principal or interest	86,995
Balance at beginning of period	246,907	84,541	103,705
Additions during period:
New mortgage loans	67,508	160,995	10,000
Interest	4,853	4,949	811
Accretion of discount	874	826	780
Deductions during period:
Provision for loan loss reserve	0	(4,300)	(5,000)
Collections of principal and interest	(176,153)	(104)	(25,755)
Balance at close of period	143,989	246,907	84,541
SENIOR LOANS and MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Prior Liens	171,716
Face Amount of Mortgages	95,490
Carrying Amount of Mortgages	72,218
Principal Amount of Loans subject to delinquent principal or interest	20,149
Borrower A [Member] \| Retail [Member] \| SENIOR LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.73%
Final Maturity Date	Sep-17
Periodic Payment Terms	Interest and principal, monthly
Prior Liens	0
Face Amount of Mortgages	33,000
Carrying Amount of Mortgages	28,949
Principal Amount of Loans subject to delinquent principal or interest	0
Borrower B [Member] \| Multi-family [Member] \| MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	LIBOR+6.0%, Floor 11%
Final Maturity Date	Feb-17
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	26,000
Face Amount of Mortgages	5,868
Carrying Amount of Mortgages	5,923
Principal Amount of Loans subject to delinquent principal or interest	0
Borrower C [Member] \| Retail [Member] \| MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	10.00%
Final Maturity Date	Nov-22
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	59,000
Face Amount of Mortgages	4,500
Carrying Amount of Mortgages	4,539
Principal Amount of Loans subject to delinquent principal or interest	0
Borrower D [Member] \| Retail [Member] \| MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Final Maturity Date	May-16
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	53,400
Face Amount of Mortgages	21,000
Carrying Amount of Mortgages	19,740
Principal Amount of Loans subject to delinquent principal or interest	0
Borrower E [Member] \| Retail [Member] \| MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.00%
Final Maturity Date	Jun-23
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	20,500
Face Amount of Mortgages	7,500
Carrying Amount of Mortgages	7,541
Principal Amount of Loans subject to delinquent principal or interest	0
Borrower F [Member] \| Retail [Member] \| MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	LIBOR+8.0%, Floor 12%
Final Maturity Date	on demand (loan in default)
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	12,816
Face Amount of Mortgages	10,806
Carrying Amount of Mortgages	0
Principal Amount of Loans subject to delinquent principal or interest	10,806
Borrower G [Member] \| Mixed Use [Member] \| MEZZANINE LOANS [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	LIBOR+10.0%, Floor 14%
Final Maturity Date	On demand (loan in default)
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	0
Face Amount of Mortgages	12,816
Carrying Amount of Mortgages	5,526
Principal Amount of Loans subject to delinquent principal or interest	9,343
Borrower H [Member] \| INVESTMENTS IN AND ADVANCES TO JOINT VENTURES [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	LIBOR+7.0%, Floor 12%
Final Maturity Date	on demand (loan in default)
Periodic Payment Terms	Interest monthly, principal at maturity
Prior Liens	0
Face Amount of Mortgages	66,846
Carrying Amount of Mortgages	0
Principal Amount of Loans subject to delinquent principal or interest	66,846
Borrower I [Member] \| INVESTMENTS IN AND ADVANCES TO JOINT VENTURES [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	10.00%
Final Maturity Date	Jun-19
Periodic Payment Terms	Interest quarterly (partial payment), principal and unpaid interest at maturity
Prior Liens	110,745
Face Amount of Mortgages	40,000
Carrying Amount of Mortgages	41,008
Principal Amount of Loans subject to delinquent principal or interest	0
BorrowerJ[Member] \| INVESTMENTS IN AND ADVANCES TO JOINT VENTURES [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.00%
Final Maturity Date	Aug-20
Periodic Payment Terms	Interest quarterly (partial payment), principal and unpaid interest at maturity
Prior Liens	234,206
Face Amount of Mortgages	30,080
Carrying Amount of Mortgages	30,763
Principal Amount of Loans subject to delinquent principal or interest	$ 0