Quarterly report pursuant to Section 13 or 15(d)

Fair Value (Details 1)

v3.8.0.1
Fair Value (Details 1) - USD ($)
 3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Other-than-temporary impairment model assumptions:    
Other-than-temporary impairment $ 271,000 $ 271,000
Cusip One [Member]    
Fair Value Pooled Trust Preferred Securities [Line Items]    
Cusip 74043CAC1  
Deal name PreTSLXXIV  
Class B-1  
Lowest credit rating assigned CCC  
Number of performing banks 62  
Number of performing insurance companies 13  
Number of issuers in default 16  
Number of issuers in deferral 2  
Defaults & deferrals as a % of performing collateral 26.56%  
Subordination:    
As a % of performing collateral 23.55%  
As a % of performing collateral - adjusted for projected future defaults 18.67%  
Other-than-temporary impairment model assumptions:    
Year 1 - issuer average 2.00%  
Year 2 - issuer average 2.00%  
Year 3 - issuer average 2.00%  
> 3 Years - issuer average [1]  
Discount rate - 3 month Libor, plus implicit yield spread at purchase 1.48%  
Recovery assumptions [2]  
Prepayments 0.00%  
Other-than-temporary impairment $ 41  
Cusip Two [Member]    
Fair Value Pooled Trust Preferred Securities [Line Items]    
Cusip 74042TAJ0  
Deal name PreTSL XXVII  
Class C-1  
Lowest credit rating assigned CC  
Number of performing banks 33  
Number of performing insurance companies 7  
Number of issuers in default 7  
Number of issuers in deferral 2  
Defaults & deferrals as a % of performing collateral 20.06%  
Subordination:    
As a % of performing collateral 8.35%  
As a % of performing collateral - adjusted for projected future defaults 1.24%  
Other-than-temporary impairment model assumptions:    
Year 1 - issuer average 2.40%  
Year 2 - issuer average 2.40%  
Year 3 - issuer average 2.40%  
> 3 Years - issuer average [1]  
Discount rate - 3 month Libor, plus implicit yield spread at purchase 1.23%  
Recovery assumptions [2]  
Prepayments 0.00%  
Other-than-temporary impairment $ 132  
Cusip Three [Member]    
Fair Value Pooled Trust Preferred Securities [Line Items]    
Cusip 01449TAB9  
Deal name Alesco IX  
Class A-2A  
Lowest credit rating assigned BB  
Number of performing banks 63  
Number of performing insurance companies 10  
Number of issuers in default 2  
Number of issuers in deferral 1  
Defaults & deferrals as a % of performing collateral 2.93%  
Subordination:    
As a % of performing collateral 53.11%  
As a % of performing collateral - adjusted for projected future defaults 49.64%  
Other-than-temporary impairment model assumptions:    
Year 1 - issuer average 2.30%  
Year 2 - issuer average 2.30%  
Year 3 - issuer average 2.30%  
> 3 Years - issuer average [1]  
Discount rate - 3 month Libor, plus implicit yield spread at purchase 1.27%  
Recovery assumptions [2]  
Prepayments 0.00%  
Other-than-temporary impairment $ 36  
Cusip Four [Member]    
Fair Value Pooled Trust Preferred Securities [Line Items]    
Cusip 01450NAC6  
Deal name Alesco XVII  
Class B  
Lowest credit rating assigned CCC  
Number of performing banks 51  
Number of issuers in default 4  
Number of issuers in deferral 1  
Defaults & deferrals as a % of performing collateral 8.11%  
Subordination:    
As a % of performing collateral 35.58%  
As a % of performing collateral - adjusted for projected future defaults 31.69%  
Other-than-temporary impairment model assumptions:    
Year 1 - issuer average 1.90%  
Year 2 - issuer average 1.90%  
Year 3 - issuer average 1.90%  
> 3 Years - issuer average [1]  
Discount rate - 3 month Libor, plus implicit yield spread at purchase 1.44%  
Recovery assumptions [2]  
Prepayments 0.00%  
Other-than-temporary impairment $ 62  
[1] Default rates > 3 years are evaluated on a issuer by issuer basis and range from 0.25% to 5.00%.
[2] Recovery assumptions are evaluated on a issuer by issuer basis and range from 0% to 15% with a five year lag.