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STOCK-BASED COMPENSATION - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Apr. 29, 2008
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Granted shares of restricted stock 341,189    
Vested [1] 1,061,476    
Stock based compensation expense unrecognized related to nonvested shares of restricted stock $ 3.9    
Period for cost recognition not yet recognized 1 year 8 months 12 days    
Weighted-Average Grant Date Fair Value of Stocks $ 6.29    
Holding Period By The Us Treasury Of Outstanding Common Stock 2 years 2 years  
Repurchased of common stock 383,087 98,300  
U S Treasury And Government [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Class Of Warrant Or Right Outstanding 1,285,899    
Percentage of forfeited stock 50.00%    
Senior Executives      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Granted shares 154,187 135,692  
Share based compensation cost $ 0.8    
Weighted-Average Grant Date Fair Value of Stocks $ 5.8 $ 6.31  
Repurchased of common stock 56,131 45,710  
Management [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Granted shares of restricted stock   949,332  
Restricted stock vesting period 2 years 2 years  
Omnibus Plan [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Authorized granting up shares     14,169,807
Restricted stock available for issuance 7,063,074    
Troubled Asset Relief Program [Member] | Senior Management [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of Share vested during period 50.00%    
Restricted Stock Forfeitures Percentage 50.00%    
Troubled Asset Relief Program [Member] | Management [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Granted shares of restricted stock   838,332  
Fair Value Of Restricted Stock Granted   $ 2.71  
Restricted Stock [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Share based compensation cost $ 1.1 $ 0.9  
Repurchased of common stock 326,956 52,590  
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period 2,370,571    
Retirement Eligible Shares 20,447    
Performance Shares [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Share based compensation cost $ 0.2    
Stock based compensation expense unrecognized related to nonvested shares of restricted stock $ 1.7    
Performance Shares [Member] | Omnibus Plan [Member] | Executive Officers [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Granted shares 304,408    
Retirement Eligible Shares 29,171    
Restricted Stock Vesting After Two Years Member [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of Share vested during period 50.00%    
Restricted Stock Vesting After Three Years Member [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Percentage of Share vested during period 50.00%    
Performance Shares Vesting After Minimum Threshold [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance Share Based Awards Percentage 50.00%    
Minimum performance threshold [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Performance Share Based Awards Percentage 80.00%    
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