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OPERATING LEASES (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Leases, Operating [Abstract]      
Rental expense $ 24,100,000 $ 20,300,000 $ 18,900,000
Future minimum rental commitments for all noncancelable operating leases      
2014 14,513,000    
2015 11,557,000    
2016 8,791,000    
2017 6,875,000    
2018 5,509,000    
Thereafter 13,136,000    
Total 60,381,000    
Land and structures
      
Future minimum rental commitments for all noncancelable operating leases      
2014 13,408,000    
2015 10,944,000    
2016 8,721,000    
2017 6,838,000    
2018 5,509,000    
Thereafter 13,136,000    
Total 58,556,000    
Equipment and Other
      
Future minimum rental commitments for all noncancelable operating leases      
2014 1,105,000    
2015 613,000    
2016 70,000    
2017 37,000    
Total $ 1,825,000