Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2014

Employee Benefits [Abstract]

Components of Net Periodic Benefit Cost (Credit) for our Defined Benefit Plans and Postretirement Benefit Plans

The components of net periodic benefit cost (credit) for our defined benefit plans and postretirement benefit plans for the three months and six months ended June 30, 2014 and 2013 were as follows (in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
Pension benefits	2014			2013			2014			2013
Service cost	$	41		$	45		$	82		$	90
Interest cost		65			58			130			117
Amortization of prior service cost		—			7			—			14
Actuarial net loss		58			171			115			345
Net periodic benefit cost	$	164		$	281		$	327		$	566
Postretirement benefits
Service cost	$	—		$	—		$	—		$	1
Interest cost		7			10			15			19
Amortization of prior service cost		(755	)		(1,087	)		(1,509	)		(2,174	)
Actuarial net loss		488			605			1,023			1,216
Net periodic benefit credit	$	(260	)	$	(472	)	$	(471	)	$	(938	)