Employee Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Cost

The components of net periodic benefit cost for our pension plans for the three and six months ended June 30, 2015 and 2014 are detailed below:

	Three months ended June 30,						Six months ended June 30,
	2015			2014			2015			2014
	(In thousands)
Components of net periodic benefit cost:
Service cost	$	444		$	452		$	888		$	904
Interest cost	84			158			168			316
Expected return on plan assets	(68		)	(117		)	(136		)	(234		)
Amortization:
Prior service cost	—			3			—			6
Unrecognized net loss	24			1			48			2
Net periodic benefit cost	$	484		$	497		$	968		$	994