Annual report pursuant to Section 13 and 15(d)

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

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Guaranteed Preferred Beneficial Interest in the Company's Junior Subordinated Debentures - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 0 Months Ended 1 Months Ended 12 Months Ended
May 28, 2010
Sep. 30, 1997
Dec. 31, 2013
Schedule Of Investments [Abstract]      
Trust Preferred Securities issued   $ 105,446  
Number of Trust Preferred Securities issued   4,217,724  
Interest rate on Trust Preferred Securities   11.60%  
Interest rate Junior Subordinated Debentures   11.60%  
Maturity date of preferred securities     Sep. 30, 2027
Liquidation amount of preferred security     $ 25.00
Trust issued common securities to the Company     3,261
Debentures interest payment defer period maximum     60 months
Trust Preferred Securities, redemption description     The Trust will redeem the preferred securities when the debentures are repaid, or at maturity on September 30, 2027
11.6% Junior subordinated debentures, due date     Sep. 30, 2027
Percentage of redemption price of debentures over principal amount     100.00%
Junior Subordinated Debentures recorded at fair value based on price 116,085    
Trust Preferred Securities underlying price $ 26.75    
Amortizing the premium on Junior Subordinated Debentures $ 7,381