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Pension (Tables)
 6 Months Ended
Jun. 30, 2017
Pension [Abstract]  
Net Pension Cost
The amount of net pension cost is shown in the table below:
 
For the Three Months Ended June 30
 
For the Six Months Ended June 30
(In thousands)
2017
2016
 
2017
2016
Service cost - benefits earned during the period
$
128

$
138

 
$
257

$
271

Interest cost on projected benefit obligation
973

1,005

 
1,946

1,972

Expected return on plan assets
(1,438
)
(1,439
)
 
(2,876
)
(2,876
)
Amortization of prior service cost
(68
)
(67
)
 
(136
)
(135
)
Amortization of unrecognized net loss
617

642

 
1,234

1,293

Net periodic pension cost
$
212

$
279

 
$
425

$
525