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STOCK BASED COMPENSATION PLANS (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Plan
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of compensation plans 2    
Shares available for grant under 2004 LTIP Plan (in shares) 715,433    
Weighted-Average Exercise Price [Roll Forward]      
Intrinsic value of exercised options and stock-settled appreciation rights $ 1,312,000 $ 760,000 $ 49,000
Weighted average assumptions [Abstract]      
Risk free interest rate (in hundredths) 1.00%    
Expected life 6 years    
Expected volatility (in hundredths) 41.50%    
Expected dividend yield (in hundredths) 1.20%    
Total compensation cost related to unvested equity awards 4,412,000    
Weighted-average period of recognition of cost 2 years 7 months 6 days    
Restricted Stock Award [Member]
      
Shares or Units and Rights [Roll Forward]      
Outstanding, beginning balance (in shares) 555,925 432,025 289,125
Granted (in shares) 162,150 252,700 249,600
Exercised or restrictions lapsed (in shares) (277,975) [1] (127,050) [1] (104,000) [1]
Forfeited or expired (in shares) (3,100) (1,750) (2,700)
Outstanding, ending balance (in shares) 437,000 555,925 432,025
Weighted-Average Award Price [Roll Forward]      
Outstanding, beginning balance (in dollars per share) $ 12.28 $ 12.13 $ 11.65
Granted (in dollars per share) $ 18.15 $ 12.34 $ 12.67
Exercised or restrictions lapsed (in dollars per share) $ 12.24 [1] $ 11.87 [1] $ 12.03 [1]
Forfeited or expired (options) (in dollars per share) $ 15.00 $ 12.34 $ 12.39
Outstanding, ending balance (in dollars per share) $ 14.46 $ 12.28 $ 12.13
Weighted average assumptions [Abstract]      
Aggregate intrinsic value of outstanding awards 13,678,000    
Fair value of vested restricted common stock 6,308,000 1,528,000 1,251,000
Period of restrictions over awards 4 years    
Compensation expense 3,323,000 2,553,000 2,060,000
Stock-Settled Appreciation Rights [Member]
      
Shares or Units and Rights [Roll Forward]      
Outstanding, beginning balance (in shares) 121,749 144,049 144,049
Granted (in shares) 112,000 0 0
Exercised or restrictions lapsed (in shares) (84,049) [1] (22,300) [1] 0 [1]
Forfeited or expired (in shares) 0 [1]   0
Outstanding, ending balance (in shares) 149,700 121,749 144,049
Exercisable, ending balance (in shares) 37,700 96,224 80,508
Weighted-Average Award Price [Roll Forward]      
Outstanding, beginning balance (in dollars per share) $ 8.85 $ 8.87 $ 8.87
Granted (in dollars per share) $ 18.14 $ 0 $ 0
Exercised or restrictions lapsed (in dollars per share) $ 8.90 [1] $ 8.94 [1] $ 0 [1]
Forfeited or expired (options) (in dollars per share) $ 0 [1]   $ 0
Outstanding, ending balance (in dollars per share) $ 15.78 $ 8.85 $ 8.87
Exercisable, ending balance (in dollars per share) $ 8.76 $ 8.89 $ 8.91
Weighted-Average Exercise Price [Roll Forward]      
Weighted average fair value for stock settled appreciation rights (in dollars per share) $ 6.50    
Weighted average assumptions [Abstract]      
Aggregate intrinsic value of vested awards 850,000    
Aggregate intrinsic value of outstanding awards $ 2,324,000    
Options [Member]
      
Shares [Roll Forward]      
Outstanding, beginning balance (in shares) 50,000 292,100 830,427
Granted (in shares) 0 0 0
Exercised or restrictions lapsed (in shares) (48,000) [1] (236,100) [1] (25,000) [1]
Forfeited or expired (options) (in shares) (2,000) (6,000) (513,327)
Outstanding, ending balance (in shares) 0 50,000 292,100
Exercisable, ending balance (in share) 0 50,000 292,100
Weighted-Average Exercise Price [Roll Forward]      
Outstanding, beginning balance (in dollars per share) $ 20.56 $ 14.20 $ 15.18
Granted (in dollars per share) $ 0 $ 0 $ 0
Exercised or restrictions lapsed (in dollars per share) $ 20.75 [1] $ 12.89 [1] $ 10.81 [1]
Forfeited or expired (options) (in dollars per share) $ 15.90 $ 12.84 $ 15.95
Outstanding, ending balance (in dollars per share) $ 0 $ 20.56 $ 14.20
Exercisable, ending balance (in dollars per share) $ 0 $ 20.56 $ 14.20
[1] The total intrinsic value of options and stock-settled appreciation rights exercised was approximately $1,312,000, $760,000 and $49,000 in 2013, 2012 and 2011, respectively.