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RETIREMENT AND DEFERRED COMPENSATION PLANS (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Domestic Plans
        
Components of net periodic benefit cost:        
Service cost $ 2,045,000 $ 1,808,000 $ 4,270,000 $ 3,612,000
Interest cost 1,246,000 1,231,000 2,496,000 2,459,000
Expected return on plan assets (1,474,000) (1,404,000) (2,888,000) (2,805,000)
Amortization of net loss 1,117,000 965,000 2,551,000 1,929,000
Amortization of prior service cost 1,000 1,000 2,000 2,000
Net periodic benefit cost 2,935,000 2,601,000 6,431,000 5,197,000
Expected contribution in current fiscal year 10,000,000   10,000,000  
Foreign Plans
        
Components of net periodic benefit cost:        
Service cost 959,000 509,000 1,928,000 1,028,000
Interest cost 658,000 630,000 1,323,000 1,275,000
Expected return on plan assets (447,000) (379,000) (899,000) (767,000)
Amortization of net loss 348,000 118,000 700,000 239,000
Amortization of prior service cost 92,000 90,000 185,000 182,000
Net periodic benefit cost 1,610,000 968,000 3,237,000 1,957,000
Expected contribution in current fiscal year 4,300,000   4,300,000  
Defined benefit plans, employer contributions     $ 1,200,000