Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Contributions for Pension and Other Postretirement Benefits

Contributions were as follows:

	Nine Months Ended September 30,
	2014		2013
U.S. defined benefit pension plan	$	0	$	5,000	(1)
U.K. defined benefit pension plan	$	1,405	$	1,308
Other postretirement benefits (e.g. net payments)	$	438	$	436
U.K. defined contribution pension plan	$	300	$	227

Net Periodic Pension and Other Postretirement Costs

Net periodic pension and other postretirement costs include the following components:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
U.S. Defined Benefit Pension Plan
Service cost	$	921		$	1,106		$	2,762		$	3,318
Interest cost		2,190			2,016			6,571			6,052
Expected return on plan assets		(2,686	)		(2,342	)		(8,060	)		(7,026	)
Amortization of prior service cost		213			160			640			480
Amortization of actuarial loss		1,046			1,788			3,138			5,360
Net benefit cost	$	1,684		$	2,728		$	5,051		$	8,184
U.K. Defined Benefit Pension Plan
Interest cost	$	679		$	656		$	2,048		$	1,891
Expected return on plan assets		(795	)		(651	)		(2,399	)		(1,842	)
Amortization of actuarial loss		151			202			455			509
Net benefit cost	$	35		$	207		$	104		$	558
Other Postretirement Benefit Plan
Service cost	$	90		$	235		$	415		$	707
Interest cost		138			232			550			695
Amortization of prior service cost		(168	)		21			(274	)		64
Amortization of actuarial loss		47			61			57			181
Net benefit cost	$	107		$	549		$	748		$	1,647