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Pension and Other Postretirement Benefits (Tables)
 3 Months Ended
Mar. 31, 2019
Retirement Benefits [Abstract]  
Pension and Other Postretirement Benefits The components of net periodic cost for the Company’s pension and postretirement benefit plans were as follows:
 
Pension Benefits
 
Postretirement Benefits
Three Months Ended March 31,
2019

2018

2019

2018
Components of net periodic cost:
 
 
 
 
 
 
 
Service cost
$
7

 
$
8

 
$
—

 
$
—

Interest cost
39

 
37

 
4

 
4

Expected return on plan assets
(38
)
 
(45
)
 
—

 
—

Amortization of actuarial loss (gain) (a)
23

 
24

 
(5
)
 
(5
)
Net periodic cost
$
31

 
$
24

 
$
(1
)
 
$
(1
)

(a) Reflects amounts reclassified from accumulated other comprehensive loss to net earnings.