XML 73 R62.htm IDEA: XBRL DOCUMENT v3.5.0.2
Investments - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Investment [Line Items]          
Payment of permitted policy claim (percent)         25.00%
Future payment of permitted policy claim (percent)         45.00%
Securities fair value $ 5,943   $ 5,943   $ 6,762
Fair Value of Securities Placed in Trust 376,266   376,266   396,100
Successor [Member]          
Investment [Line Items]          
Unrealized losses on securities 16,719   16,719   82,799
Other investments 6,390 $ 2,475 9,229 $ 12,126  
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments 63,773   63,773   104,206
Below Investment Grade Securities and Non-Rated Securities [Member] | Successor [Member]          
Investment [Line Items]          
Fair value of below investment grade securities and non-rated securities 1,055,824   1,055,824   953,000
Gross unrealized loss 58,292   58,292   69,214
Ambac Wrapped Securities [Member]          
Investment [Line Items]          
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments 52,658   52,658    
Gains (losses) on securities held as of reporting date [Member] | Successor [Member]          
Investment [Line Items]          
Other investments 3,742 $ (1,650) 5,417 $ 4,589  
Ambac UK [Member]          
Investment [Line Items]          
Asset Backed Securities Fair Value Disclosure $ 117,899   117,899   119,802
National Century Financial Enterprises, Inc. [Member]          
Investment [Line Items]          
Cash recoveries     $ 0   $ 35