VARIABLE INTEREST ENTITIES LOANS HELD FOR INVESTMENT RSO (Details) - RSO [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	$ 181,757	$ 330,648
Loans Receivable Held-for-sale, Amount	111,122	111,736
Loans and Leases Receivable, Gross	187,785	330,930
Commercial Real Estate Loans [Member]
Variable Interest Entity [Line Items]
Amortized Cost	1,573,422	1,347,030
First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	179,219	325,726
Loans Receivable Held-for-sale, Amount	6,028	282
Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	2,064	3,572
Third Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Defaulted First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	215	0
Defaulted Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	259	1,350
Apidos Cinco CDO Ltd [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	181,757	249,328
Loans and Leases Receivable, Gross	186,273	249,610
Apidos Cinco CDO Ltd [Member] | First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	179,219	245,377
Loans Receivable Held-for-sale, Amount	4,516	282
Apidos Cinco CDO Ltd [Member] | Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	2,064	3,572
Apidos Cinco CDO Ltd [Member] | Third Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos Cinco CDO Ltd [Member] | Defaulted First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	215	0
Apidos Cinco CDO Ltd [Member] | Defaulted Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	259	379
Apidos CDO III Ltd. [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	81,167
Loans and Leases Receivable, Gross	1,358	81,167
Apidos CDO III Ltd. [Member] | First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	80,196
Loans Receivable Held-for-sale, Amount	1,358	0
Apidos CDO III Ltd. [Member] | Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos CDO III Ltd. [Member] | Third Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos CDO III Ltd. [Member] | Defaulted First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos CDO III Ltd. [Member] | Defaulted Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	971
Apidos CDO I Ltd. [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	153
Loans and Leases Receivable, Gross	154	153
Apidos CDO I Ltd. [Member] | First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	153
Loans Receivable Held-for-sale, Amount	154	0
Apidos CDO I Ltd. [Member] | Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos CDO I Ltd. [Member] | Third Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos CDO I Ltd. [Member] | Defaulted First Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	0	0
Apidos CDO I Ltd. [Member] | Defaulted Second Lien [Member]
Variable Interest Entity [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Commercial	$ 0	$ 0
FLORIDA | Residential Mortgage Loans [Member]
Variable Interest Entity [Line Items]
Concentration of loan portfolio risk (in hundredths)	5.00%
Industry Grouping of Diversified/conglomerate Service [Member] | Commercial Real Estate Loans [Member]
Variable Interest Entity [Line Items]
Concentration of loan portfolio risk (in hundredths)	11.80%	11.70%
Industry Grouping of Automobile and Healthcare [Member] | Commercial Real Estate Loans [Member]
Variable Interest Entity [Line Items]
Concentration of loan portfolio risk (in hundredths)	10.90%	8.50%
Industry Grouping of Healthcare, Education and Childcare [Member] | Commercial Real Estate Loans [Member]
Variable Interest Entity [Line Items]
Concentration of loan portfolio risk (in hundredths)	10.30%	17.50%
NORTH CAROLINA | Residential Mortgage Loans [Member]
Variable Interest Entity [Line Items]
Concentration of loan portfolio risk (in hundredths)	4.80%
Middle-market Loans [Member]
Variable Interest Entity [Line Items]
Amortized Cost	$ 330,995	$ 250,113
Middle-market Loans [Member] | First Lien [Member]
Variable Interest Entity [Line Items]
Amortized Cost	218,013	149,287
Middle-market Loans [Member] | Second Lien [Member]
Variable Interest Entity [Line Items]
Amortized Cost	108,026	100,826
Middle-market Loans [Member] | Defaulted First Lien [Member]
Variable Interest Entity [Line Items]
Amortized Cost	0	0
Middle-market Loans [Member] | Defaulted Second Lien [Member]
Variable Interest Entity [Line Items]
Amortized Cost	$ 4,956	$ 0