Annual report pursuant to Section 13 and 15(d)

CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS (Details)

v2.4.0.6
CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Other intangible assets      
Finite and infinite lived intangible assets, gross $ 28,389,000 $ 29,178,000  
Finite and infinite lived intangible assets, net 141,789,000 137,526,000  
Total amortization expense 23,400,000 22,400,000 20,400,000
Non-amortizable, indefinite lived intangible assets 12,600,000 14,400,000  
Customer contracts
      
Finite-lived intangible assets      
Finite-lived intangible assets, gross 217,384,000 227,281,000  
Less: Accumulated amortization (103,984,000) (118,933,000)  
Finite-lived intangible assets, net 113,400,000 108,348,000  
Other intangible assets      
Less: Accumulated amortization (103,984,000) (118,933,000)  
Customer contracts | Maximum
      
CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS      
Useful life of intangible assets 20 years    
Customer contracts | Minimum
      
CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS      
Useful life of intangible assets 8 years    
Customer contracts | Foreign countries
      
Finite-lived intangible assets      
Finite-lived intangible assets, net 5,400,000 6,300,000  
Other intangible assets
      
Finite-lived intangible assets      
Less: Accumulated amortization (7,126,000) (12,524,000)  
Other intangible assets      
Finite and infinite lived intangible assets, gross 35,515,000 41,702,000  
Less: Accumulated amortization (7,126,000) (12,524,000)  
Finite and infinite lived intangible assets, net 28,389,000 29,178,000  
Non-compete agreements | Maximum
      
CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS      
Useful life of intangible assets 20 years    
Non-compete agreements | Minimum
      
CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS      
Useful life of intangible assets 3 years    
Patents
      
CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS      
Useful life of intangible assets 15 years    
Trademarks and tradenames
      
Other intangible assets      
Finite and infinite lived intangible assets, net $ 15,300,000 $ 15,700,000