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Earnings per Share - Additional Information (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
shares
Calculation For Basic And Diluted Earnings Per Common Share [Line Items]  
Each share convertible into shares 69
Redemption of preferred stock, shares 2,367
Redemption of preferred stock | $ $ 2,367
Series A Preferred Stock  
Calculation For Basic And Diluted Earnings Per Common Share [Line Items]  
Dividend Rate 6.00%
Number of preferred stock converted 12,784
Redemption of preferred stock, shares 2,367
Redemption of preferred stock | $ $ 2,370
Accrued and unpaid dividends | $ $ 9