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Benefit Plans (Tables)
6 Months Ended
Jun. 28, 2015
Compensation And Retirement Disclosure [Abstract]  
Components of Net Periodic Pension Cost (Benefit)

The components of net periodic pension cost (benefit) were as follows:

 

 

 

Second Quarter

 

 

First Half

 

In Thousands

 

2015

 

 

2014

 

 

2015

 

 

2014

 

Service cost

 

$

35

 

 

$

29

 

 

$

70

 

 

$

58

 

Interest cost

 

 

2,973

 

 

 

2,896

 

 

 

5,947

 

 

 

5,792

 

Expected return on plan assets

 

 

(3,386

)

 

 

(3,456

)

 

 

(6,774

)

 

 

(6,913

)

Amortization of prior service cost

 

 

9

 

 

 

9

 

 

 

18

 

 

 

18

 

Recognized net actuarial loss

 

 

795

 

 

 

422

 

 

 

1,591

 

 

 

844

 

Net periodic pension cost (benefit)

 

$

426

 

 

$

(100

)

 

$

852

 

 

$

(201

)

 

Components of Net Periodic Postretirement Benefit Cost

The components of net periodic postretirement benefit cost were as follows:

 

 

 

Second Quarter

 

 

First Half

 

In Thousands

 

2015

 

 

2014

 

 

2015

 

 

2014

 

Service cost

 

$

325

 

 

$

383

 

 

$

650

 

 

$

766

 

Interest cost

 

 

707

 

 

 

825

 

 

 

1,415

 

 

 

1,650

 

Recognized net actuarial loss

 

 

718

 

 

 

563

 

 

 

1,435

 

 

 

1,126

 

Amortization of prior service cost

 

 

(840

)

 

 

(378

)

 

 

(1,680

)

 

 

(756

)

Net periodic postretirement benefit cost

 

$

910

 

 

$

1,393

 

 

$

1,820

 

 

$

2,786