XML 41 R29.htm IDEA: XBRL DOCUMENT v3.7.0.1
Employee Benefit Plans (Tables)
 3 Months Ended
Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]  
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
Net periodic benefit cost (income) for our pension and other postretirement plans consists of the following (in thousands):
 
Pension Benefits
 
Other Postretirement Benefits
 
Three Months Ended March 31,
 
Three Months Ended March 31,
 
2017
 
2016
 
2017
 
2016
Components of Net Periodic Benefit Cost (Income)
 
 
 
 
 
 
 
Service cost
$
3,130

 
$
2,939

 
$
128

 
$
130

Interest cost
6,429

 
6,566

 
180

 
202

Expected return on plan assets
(6,008
)
 
(7,081
)
 
(213
)
 
(261
)
Amortization of prior service cost
2

 
62

 
(471
)
 
(471
)
Recognized actuarial loss
1,975

 
2,466

 
78

 
87

Net Periodic Benefit Cost (Income)
$
5,528

 
$
4,952

 
$
(298
)
 
$
(313
)