DEBT OBLIGATIONS (Details) (USD $) In Thousands, unless otherwise specified
|
6 Months Ended |
Jun. 30, 2013
|
Debt Face Amount |
$ 1,900,484
|
|
Carrying Value |
1,897,460
|
|
CDO VI Bonds Payable
|
|
|
Month Issued |
Apr 2005
|
[1] |
Debt Face Amount |
91,797
|
[1] |
Carrying Value |
91,797
|
[1] |
Final Stated Maturity |
Apr 2040
|
[1] |
Unhedged Weighted Average Funding Cost |
0.86%
|
[1],[2] |
Weighted Average Funding Cost |
5.35%
|
[1],[3] |
Weighted Average Maturity (Years) |
4 years 4 months 24 days
|
[1] |
Face Amount of Floating Rate Debt |
88,612
|
[1] |
Outstanding Face Amount of Collateral |
173,682
|
[1],[4] |
Amortized Cost Basis of Collateral |
90,276
|
[1],[4] |
Carrying Value of Collateral |
121,198
|
[1],[4] |
Weighted Average Maturity (Years) Of Collateral |
2 years 8 months 12 days
|
[1] |
Floating Rate Face Amount of Collateral |
45,282
|
[1],[4] |
Aggregate Notional Amount of Current Hedges |
88,612
|
[1],[5] |
CDO VIII Bonds Payable
|
|
|
Month Issued |
Nov 2006
|
|
Debt Face Amount |
412,649
|
|
Carrying Value |
411,951
|
|
Final Stated Maturity |
Nov 2052
|
|
Unhedged Weighted Average Funding Cost |
0.83%
|
[2] |
Weighted Average Funding Cost |
2.07%
|
[3] |
Weighted Average Maturity (Years) |
2 years
|
|
Face Amount of Floating Rate Debt |
405,049
|
|
Outstanding Face Amount of Collateral |
615,697
|
[4] |
Amortized Cost Basis of Collateral |
441,282
|
[4] |
Carrying Value of Collateral |
472,096
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
2 years 2 months 12 days
|
|
Floating Rate Face Amount of Collateral |
329,038
|
[4] |
Aggregate Notional Amount of Current Hedges |
105,749
|
[5] |
CDO IX Bonds Payable
|
|
|
Month Issued |
May 2007
|
|
Debt Face Amount |
339,210
|
|
Carrying Value |
340,736
|
|
Final Stated Maturity |
May 2052
|
|
Unhedged Weighted Average Funding Cost |
0.58%
|
[2] |
Weighted Average Funding Cost |
0.58%
|
[3] |
Weighted Average Maturity (Years) |
1 year 8 months 12 days
|
|
Face Amount of Floating Rate Debt |
339,210
|
|
Outstanding Face Amount of Collateral |
586,272
|
[4] |
Amortized Cost Basis of Collateral |
455,114
|
[4] |
Carrying Value of Collateral |
464,062
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
2 years 4 months 24 days
|
|
Floating Rate Face Amount of Collateral |
298,092
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
Total CDO Bonds Payable
|
|
|
Debt Face Amount |
843,656
|
|
Carrying Value |
844,484
|
|
Weighted Average Funding Cost |
1.83%
|
[3] |
Weighted Average Maturity (Years) |
2 years 1 month 6 days
|
|
Face Amount of Floating Rate Debt |
832,871
|
|
Outstanding Face Amount of Collateral |
1,375,651
|
[4] |
Amortized Cost Basis of Collateral |
986,672
|
[4] |
Carrying Value of Collateral |
1,057,356
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
2 years 3 months 18 days
|
|
Floating Rate Face Amount of Collateral |
672,412
|
[4] |
Aggregate Notional Amount of Current Hedges |
194,361
|
[5] |
MH Loans Portfolio I Bonds and Notes Payable
|
|
|
Month Issued |
Apr 2010
|
|
Debt Face Amount |
61,682
|
[6] |
Carrying Value |
58,099
|
[6] |
Final Stated Maturity |
Jul 2035
|
[6] |
Unhedged Weighted Average Funding Cost |
6.39%
|
[2],[6] |
Weighted Average Funding Cost |
6.39%
|
[3],[6] |
Weighted Average Maturity (Years) |
4 years 1 month 6 days
|
[6] |
Face Amount of Floating Rate Debt |
|
[6] |
Outstanding Face Amount of Collateral |
110,589
|
[4],[6] |
Amortized Cost Basis of Collateral |
94,909
|
[4],[6] |
Carrying Value of Collateral |
94,909
|
[4],[6] |
Weighted Average Maturity (Years) Of Collateral |
6 years 3 months 18 days
|
[6] |
Floating Rate Face Amount of Collateral |
746
|
[4],[6] |
Aggregate Notional Amount of Current Hedges |
|
[5],[6] |
MH Loans Portfolio II Bonds and Notes Payable
|
|
|
Month Issued |
May 2011
|
|
Debt Face Amount |
106,124
|
|
Carrying Value |
105,619
|
|
Final Stated Maturity |
Dec 2033
|
|
Unhedged Weighted Average Funding Cost |
4.53%
|
[2] |
Weighted Average Funding Cost |
4.53%
|
[3] |
Weighted Average Maturity (Years) |
3 years 9 months 18 days
|
|
Face Amount of Floating Rate Debt |
|
|
Outstanding Face Amount of Collateral |
140,828
|
[4] |
Amortized Cost Basis of Collateral |
138,895
|
[4] |
Carrying Value of Collateral |
138,895
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
5 years 6 months
|
|
Floating Rate Face Amount of Collateral |
23,186
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
Total Other Bonds And Notes Payable
|
|
|
Debt Face Amount |
167,806
|
|
Carrying Value |
163,718
|
|
Weighted Average Funding Cost |
5.19%
|
[3] |
Weighted Average Maturity (Years) |
3 years 10 months 24 days
|
|
Face Amount of Floating Rate Debt |
|
|
Outstanding Face Amount of Collateral |
251,417
|
[4] |
Amortized Cost Basis of Collateral |
233,804
|
[4] |
Carrying Value of Collateral |
233,804
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
5 years 9 months 18 days
|
|
Floating Rate Face Amount of Collateral |
23,932
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
FNMA/FHLMC Securities
|
|
|
Month Issued |
Jun 2013
|
[7],[8] |
Debt Face Amount |
311,276
|
[7],[8] |
Carrying Value |
311,276
|
[7],[8] |
Final Stated Maturity |
Jul 2013
|
[7],[8] |
Unhedged Weighted Average Funding Cost |
0.39%
|
[2],[7],[8] |
Weighted Average Funding Cost |
0.39%
|
[3],[7],[8] |
Weighted Average Maturity (Years) |
0 years 1 month 6 days
|
[7],[8] |
Face Amount of Floating Rate Debt |
311,276
|
[7],[8] |
Outstanding Face Amount of Collateral |
311,659
|
[4],[7],[8] |
Amortized Cost Basis of Collateral |
335,165
|
[4],[7],[8] |
Carrying Value of Collateral |
335,814
|
[4],[7],[8] |
Weighted Average Maturity (Years) Of Collateral |
3 years 8 months 12 days
|
[7],[8] |
Floating Rate Face Amount of Collateral |
311,659
|
[4],[7],[8] |
Aggregate Notional Amount of Current Hedges |
|
[5],[7],[8] |
Total Repurchase Agreements
|
|
|
Debt Face Amount |
311,276
|
[7] |
Carrying Value |
311,276
|
[7] |
Weighted Average Funding Cost |
0.39%
|
[3],[7] |
Weighted Average Maturity (Years) |
0 years 1 month 6 days
|
[7] |
Face Amount of Floating Rate Debt |
311,276
|
[7] |
Outstanding Face Amount of Collateral |
311,659
|
[4],[7] |
Amortized Cost Basis of Collateral |
335,165
|
[4],[7] |
Carrying Value of Collateral |
335,814
|
[4],[7] |
Weighted Average Maturity (Years) Of Collateral |
3 years 8 months 12 days
|
[7] |
Floating Rate Face Amount of Collateral |
311,659
|
[4],[7] |
Aggregate Notional Amount of Current Hedges |
|
[5],[7] |
BPM Senior Living Facilities
|
|
|
Month Issued |
Jul 2012
|
|
Debt Face Amount |
88,400
|
|
Carrying Value |
88,400
|
|
Final Stated Maturity |
Aug 2019
|
|
Unhedged Weighted Average Funding Cost |
3.44%
|
[2] |
Weighted Average Funding Cost |
3.44%
|
[3] |
Weighted Average Maturity (Years) |
5 years 8 months 12 days
|
|
Face Amount of Floating Rate Debt |
23,400
|
|
Outstanding Face Amount of Collateral |
N/A
|
[4] |
Amortized Cost Basis of Collateral |
132,547
|
[4] |
Carrying Value of Collateral |
132,547
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
N/A
|
|
Floating Rate Face Amount of Collateral |
|
[4] |
Aggregate Notional Amount of Current Hedges |
23,400
|
[5] |
Utah Senior Living Facilities
|
|
|
Month Issued |
Nov 2012
|
|
Debt Face Amount |
16,000
|
|
Carrying Value |
16,000
|
|
Final Stated Maturity |
Oct 2017
|
|
Unhedged Weighted Average Funding Cost |
LIBOR+3.75%; LIBOR floor of 1%
|
[2],[9] |
Weighted Average Funding Cost |
4.75%
|
[3] |
Weighted Average Maturity (Years) |
4 years 3 months 18 days
|
|
Face Amount of Floating Rate Debt |
16,000
|
|
Outstanding Face Amount of Collateral |
N/A
|
[4] |
Amortized Cost Basis of Collateral |
21,387
|
[4] |
Carrying Value of Collateral |
21,387
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
N/A
|
|
Floating Rate Face Amount of Collateral |
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
Courtyards Senior Living Facilities
|
|
|
Month Issued |
Dec 2012
|
|
Debt Face Amount |
16,125
|
|
Carrying Value |
16,125
|
|
Final Stated Maturity |
Oct 2017
|
|
Unhedged Weighted Average Funding Cost |
LIBOR+3.75%; LIBOR floor of 1%
|
[2],[9] |
Weighted Average Funding Cost |
4.75%
|
[3] |
Weighted Average Maturity (Years) |
4 years 3 months 18 days
|
|
Face Amount of Floating Rate Debt |
16,125
|
|
Outstanding Face Amount of Collateral |
N/A
|
[4] |
Amortized Cost Basis of Collateral |
20,607
|
[4] |
Carrying Value of Collateral |
20,607
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
N/A
|
|
Floating Rate Face Amount of Collateral |
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
Total Mortgage Notes Payable
|
|
|
Debt Face Amount |
120,525
|
|
Carrying Value |
120,525
|
|
Weighted Average Funding Cost |
3.79%
|
[3] |
Weighted Average Maturity (Years) |
5 years 3 months 18 days
|
|
Face Amount of Floating Rate Debt |
55,525
|
|
Outstanding Face Amount of Collateral |
N/A
|
[4] |
Amortized Cost Basis of Collateral |
174,541
|
[4] |
Carrying Value of Collateral |
174,541
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
N/A
|
|
Floating Rate Face Amount of Collateral |
|
[4] |
Aggregate Notional Amount of Current Hedges |
23,400
|
[5] |
Junior Subordinated Debt
|
|
|
Month Issued |
Mar 2006
|
|
Debt Face Amount |
51,004
|
|
Carrying Value |
51,240
|
|
Final Stated Maturity |
Apr 2035
|
|
Unhedged Weighted Average Funding Cost |
7.574%; LIBOR + 2.25% after April 2016
|
[10],[2] |
Weighted Average Funding Cost |
7.40%
|
[3] |
Weighted Average Maturity (Years) |
21 years 9 months 18 days
|
|
Face Amount of Floating Rate Debt |
|
|
Outstanding Face Amount of Collateral |
|
[4] |
Amortized Cost Basis of Collateral |
|
[4] |
Carrying Value of Collateral |
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
|
|
Floating Rate Face Amount of Collateral |
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
Total Corporate
|
|
|
Debt Face Amount |
51,004
|
|
Carrying Value |
51,240
|
|
Weighted Average Funding Cost |
7.40%
|
[3] |
Weighted Average Maturity (Years) |
21 years 9 months 18 days
|
|
Face Amount of Floating Rate Debt |
|
|
Outstanding Face Amount of Collateral |
|
[4] |
Amortized Cost Basis of Collateral |
|
[4] |
Carrying Value of Collateral |
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
|
|
Floating Rate Face Amount of Collateral |
|
[4] |
Aggregate Notional Amount of Current Hedges |
|
[5] |
Debt Securities Payable
|
|
|
Debt Face Amount |
1,494,267
|
|
Carrying Value |
1,491,243
|
|
Weighted Average Funding Cost |
2.25%
|
[3] |
Weighted Average Maturity (Years) |
2 years 9 months 18 days
|
|
Face Amount of Floating Rate Debt |
1,199,672
|
|
Outstanding Face Amount of Collateral |
1,938,727
|
[4] |
Amortized Cost Basis of Collateral |
1,730,182
|
[4] |
Carrying Value of Collateral |
1,801,515
|
[4] |
Weighted Average Maturity (Years) Of Collateral |
3 years
|
|
Floating Rate Face Amount of Collateral |
1,008,003
|
[4] |
Aggregate Notional Amount of Current Hedges |
217,761
|
[5] |
Subprime mortgage loans subject to call option
|
|
|
Debt Face Amount |
406,217
|
[11] |
Carrying Value |
$ 406,217
|
[11] |
|
|