Pension and Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2015

Pension Plans

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Components of net periodic benefit costs

The components of the Company's pension related costs for the following periods are as follows:

In thousands	Three Months Ended June 30, 2015			Three Months Ended June 28, 2014			Six Months Ended June 30, 2015			Six Months Ended June 28, 2014
Service cost	$	1,031		$	874		$	2,032		$	1,747
Interest cost	2,005			2,463			3,980			4,921
Expected return on plan assets	(2,733		)	(3,122		)	(5,419		)	(6,240		)
Curtailment / settlement (gain) loss	—			—			—			—
Net amortization of:
Actuarial (gain) loss	99			(4		)	197			(8		)
Transition costs and other	(11		)	—			(20		)	—
Net periodic benefit cost	$	391		$	211		$	770		$	420

Postretirement Benefit Plans

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Components of net periodic benefit costs

The components of the Company's postretirement related costs for the following periods are as follows:

In thousands	Three Months Ended June 30, 2015		Three Months Ended June 28, 2014		Six Months Ended June 30, 2015		Six Months Ended June 28, 2014
Service cost	$	2	$	9	$	4	$	18
Interest cost	47		94		91		187
Curtailment / settlement (gain) loss	—		—		—		—
Net amortization of:
Actuarial (gain) loss	1		5		3		10
Transition costs and other	—		—		—		—
Net periodic benefit cost	$	50	$	108	$	98	$	215