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RESTRICTED STOCK UNITS, STOCK OPTIONS, AND STOCK APPRECIATION RIGHTS (SARs) - Summary of Stock Appreciation Rights (Detail) (Stock Appreciation Rights (SARs) [Member], USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Stock Appreciation Rights (SARs) [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Life of award 10 years    
Award vesting period 3 years    
Outstanding at December 31, 2011 (in shares) 111,734    
Expired or forfeited (in shares) (6,700)    
Outstanding at December 31, 2012 (in shares) 105,034 111,734  
Exercisable at December 31, 2012, (in shares) 105,034    
Outstanding at December 31, 2011, Weighted Average Exercise Price (in USD per share) $ 22.20    
Expired or forfeited, Weighted Average Exercise Price (in USD per share) $ 21.49    
Outstanding at December 31, 2012, Weighted Average Exercise Price (in USD per share) $ 22.24 $ 22.20  
Options, Outstanding, Weighted Average Remaining Contractual Term (in years) 2 years 7 months 29 days    
Options, Exercisable, Weighted Average Remaining Contractual Term (in years) 2 years 7 months 29 days    
Aggregate Intrinsic Value, Outstanding at December 31, 2012 $ 0    
Unamortized Compensation Expense, Outstanding and exercisable at December 31, 2012 0    
Total grant-date fair value of SARs that vested (less than $0.1 million in 2011 and 2010)   $ 100 $ 100