Annual report pursuant to Section 13 and 15(d)

Guaranteed Preferred Beneficial Interest in the Company's Junior Subordinated Debentures - Additional Information (Detail)

v3.3.1.900
Guaranteed Preferred Beneficial Interest in the Company's Junior Subordinated Debentures - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2014
Sep. 30, 1997
Dec. 31, 2015
Dec. 31, 2014
Guarantees [Abstract]        
Trust Preferred Securities issued   $ 105,446    
Number of Trust Preferred Securities issued   4,217,724    
Interest rate Junior Subordinated Debentures   11.60%    
Liquidation amount of preferred security     $ 25.00  
Trust issued common securities to the Company   $ 3,261    
Debentures interest payment defer period maximum (up to)     60 months  
Percentage of redemption price of debentures over principal amount     100.00%  
Junior Subordinated Debentures recorded at fair value based on price $ 131,141      
Trust Preferred Securities underlying price $ 30.32      
Amortizing the premium on Junior Subordinated Debentures $ 22,437      
Unamortized premium on the Junior Subordinate Debentures     $ 21,003 $ 21,980