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EMPLOYEE BENEFIT PLANS Schedule of Net Benefit Costs (Tables)
3 Months Ended
Mar. 31, 2017
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
 
March 31,
(In thousands of dollars)
2017
 
2016
Service cost
$
1,068

 
$
923

Interest cost
962

 
926

Expected return on plan assets
(1,368
)
 
(1,279
)
Recognized actuarial gain
(49
)
 
(10
)
Net periodic benefit cost
$
613

 
$
560