Pension Benefit and Other Postretirement Benefit Plans

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Pension Benefit and Other Postretirement Benefit Plans

Pension Benefits and Other Postretirement Benefit Plans

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost (income) for the periods indicated are:

(Dollars in thousands)	Pension Benefits												Retirement Health and Life Insurance Benefits
	Three Months Ended						Six Months Ended						Three Months Ended					Six Months Ended
Change in benefit obligation:	June 30, 2014			June 30, 2013			June 30, 2014			June 30, 2013			June 30, 2014		June 30, 2013			June 30, 2014		June 30, 2013
Service cost	$	—		$	956		$	—		$	2,210		$	159	$	170		$	319	$	341
Interest cost	1,990			1,954			4,008			4,015			84		71			167		141
Expected return on plan assets	(3,228		)	(2,731		)	(6,455		)	(5,447		)	—		—			—		—
Amortization of prior service cost	—			31			—			124			—		(57		)	—		(115		)
Amortization of net loss	160			1,049			343			2,525			30		82			61		165
Special termination benefit	—			—			—			—			—		—			—		—
Settlement charge	(33		)	—			77			—			—		—			—		—
Curtailment charge	—			1,537			—			1,537			—		—			—		—
Net periodic benefit cost (income)	$	(1,111	)	$	2,796		$	(2,027	)	$	4,964		$	273	$	266		$	547	$	532

In the first quarter of 2014, we made a one-time cash payment to a former employee of $0.8 million in accordance with the provisions of his retirement contract related to his participation in the Pension Restoration Plan. This payment resulted in a settlement charge of approximately $0.1 million, which was recognized in the first quarter of 2014.

Employer Contributions

In the second quarter of 2014, we made a voluntary contribution of $6.5 million to our qualified defined benefit pension plans. This is the only amount contributed in the first six months of 2014. In the first half of 2013, we made voluntary contributions of $6.5 million to our qualified defined benefit pension plans.

We made $0.8 million in contributions to our non-qualified defined benefit pension plan for quarter ended March 31, 2014. We did not make any contributions to our non-qualified defined benefit pension plan in the second quarter of 2014 or the first half of 2013.