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EMPLOYEE BENEFIT PLANS Schedule of Net Benefit Costs (Tables)
9 Months Ended
Sep. 30, 2016
Postemployment Benefits [Abstract]  
Schedule of Net Benefit Costs [Table Text Block]
The following table reflects the components of net periodic benefit costs for the Company's defined benefit plans:
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
(In thousands of dollars)
2016
 
2015
 
2016
 
2015
Service cost
$
977

 
$
1,113

 
$
2,889

 
$
3,442

Interest cost
979

 
991

 
2,898

 
3,064

Expected return on plan assets
(1,353
)
 
(1,299
)
 
(4,004
)
 
(4,017
)
Recognized actuarial gain
(10
)
 
(4
)
 
(31
)
 
(12
)
Net periodic benefit cost
$
593

 
$
801

 
$
1,752

 
$
2,477