XML 43 R33.htm IDEA: XBRL DOCUMENT v3.10.0.1
ASSOCIATE BENEFIT PLANS (Tables)
 9 Months Ended
Sep. 30, 2018
Postemployment Benefits [Abstract]  
Schedule of Net Periodic Benefit Cost Components of Postretirement Benefits
The following table presents the components of net periodic benefit cost related to our postretirement medical benefits plan measured at January 1, 2018 and 2017.
 
 
Three months ended September 30,
 
Nine months ended September 30,
(Dollars in thousands)
 
2018
 
2017
 
2018
 
2017
Service cost
 
$
15

 
$
11

 
$
45

 
$
40

Interest cost
 
18

 
16

 
53

 
54

Prior service cost amortization
 
(19
)
 
(19
)
 
(57
)
 
(57
)
Net gain recognition
 
(11
)
 
(18
)
 
(34
)
 
(52
)
Net periodic benefit cost
 
$
3

 
$
(10
)
 
$
7

 
$
(15
)
the Alliance Associate Pension Plan measured at January 1, 2018 and 2017.
 
 
Three months ended September 30,
 
Nine months ended September 30,
(Dollars in thousands)
 
2018
 
2017
 
2018
 
2017
Service cost
 
$
10

 
$
10

 
$
30

 
$
30

Interest cost
 
75

 
75

 
222

 
225

Expected return on plan assets
 
(138
)
 
(135
)
 
(410
)
 
(405
)
Prior service cost amortization
 
—

 
—

 
—

 
—

Net gain recognition
 
—

 
—

 
—

 
—

Net periodic benefit cost
 
$
(53
)
 
$
(50
)
 
$
(158
)
 
$
(150
)