v2.4.0.6
EMPLOYEE RETIREMENT PLANS (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
EMPLOYEE RETIREMENT PLANS      
Expense incurred for employee retirement plans $ 9,100,000 $ 8,000,000 $ 2,300,000
Closure of manufacturing facility in Sarnia, Ontario
     
Employee retirement plans      
Contribution to the pension plan   800,000  
Pension Benefits
     
Reconciliation of the beginning and ending balances of the projected benefit obligation for defined benefit plans      
Projected benefit obligation, beginning of year 147,290,000 143,133,000  
Interest cost 7,193,000 7,397,000 7,747,000
Actuarial loss 19,087,000 10,226,000  
Foreign currency translation adjustment   58,000  
Gross benefits paid (5,059,000) (13,524,000)  
Projected benefit obligation, end of year 168,511,000 147,290,000 143,133,000
Accumulated benefit obligation, end of year 168,511,000 147,290,000  
Reconciliation of the beginning and ending balances of the fair value of the plans' assets      
Fair value of plan assets, beginning of year 107,738,000 122,509,000  
Actual return on plan assets 12,732,000 (2,401,000)  
Foreign currency translation adjustment   60,000  
Employer contribution 419,000 1,094,000  
Gross benefits paid (5,059,000) (13,524,000)  
Fair value of plan assets, end of year 115,830,000 107,738,000 122,509,000
U.S. defined benefit plan
     
Employee retirement plans      
Expense related to the defined contribution plans 4,800,000 3,700,000 1,300,000
Canadian defined contribution plan
     
Employee retirement plans      
Expense related to the defined contribution plans $ 2,500,000 $ 2,100,000