XML 47 R36.htm IDEA: XBRL DOCUMENT v3.5.0.2
Investments - Additional Information (Details)
 1 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2007
USD ($)
issuer
institution
company
Jun. 30, 2016
USD ($)
Investment
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
Investment
Jun. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Investment
Schedule of Available-for-sale Securities [Line Items]            
Aggregate fair market value of securities pledged as collateral   $ 16,600,000   $ 16,600,000   $ 2,900,000
Sales of securities available for sale   0 $ 0 0 $ 0  
Impairment credit losses on available-for-sale securities   0 0 0 0  
Portion of other-than-temporary impairment losses recognized in other comprehensive loss   698,000   698,000   547,000
Amortized Cost   49,742,000   49,742,000   53,799,000
Estimated Fair Value   49,263,000   49,263,000   52,249,000
Unrealized loss   $ 775,000   $ 775,000   $ 1,587,000
Number of equity method investments | Investment   1   1   1,000
Contributions to equity method investment   $ 12,000 $ 0 $ 87,000 $ 0  
Asset-backed security            
Schedule of Available-for-sale Securities [Line Items]            
Number of securities | Investment   1   1    
Trust preferred securities, number of issuers | issuer 56          
Trust preferred securities, number of U.S. depository institutions | institution 45          
Trust preferred securities, number of insurance companies | company 11          
Available for sale security purchased, face value $ 3,000,000.0          
Available for sale security purchased, price as percentage of face amount 95.21%          
Available for sale security purchased, price paid $ 2,900,000          
Trust preferred securities issued, value $ 363,000,000          
Basis points over 3 months LIBOR 0.60%          
Amortized Cost   $ 2,027,000   $ 2,027,000   $ 2,027,000
Estimated Fair Value   1,329,000   1,329,000   1,480,000
Unrealized loss   $ 698,000   698,000   $ 547,000
Available-for-sale securities, default experienced       $ 42,500,000    
Percentage of default to total current collateral   12.50%   12.50%    
Security payment deferrals       $ 7,000,000    
Percentage of payment deferrals to total current collateral   2.10%   2.10%    
Excess subordination   $ 59,500,000   $ 59,500,000