Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost for pension and postretirement plans

The components of net periodic benefit cost for the pension and postretirement plans are as follows:

	Pension Benefits
	Three Months Ended   June 30,						Six Months Ended   June 30,
	2014			2013			2014			2013
	(in thousands)
Service cost	$	57		$	50		$	114		$	99
Interest cost	242			220			485			441
Expected return on plan assets	(313		)	(278		)	(626		)	(557		)
Amortization of net actuarial loss/prior service cost	70			194			139			388
Net periodic cost recognized	$	56		$	186		$	112		$	371

	Postretirement Benefits
	Three Months Ended   June 30,						Six Months Ended   June 30,
	2014			2013			2014			2013
	(in thousands)
Service cost	$	—		$	1		$	—		$	1
Interest cost	1			1			2			2
Amortization of net actuarial gain/prior service credit	(15		)	(117		)	(29		)	(234		)
Net periodic benefit recognized	$	(14	)	$	(115	)	$	(27	)	$	(231	)