Defined Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2013

Defined Benefit Pension Plans

Defined benefit plans disclosure

Schedule of components of and the assumptions used to determine net periodic pension cost

	United Kingdom Plans						German Plan
	Three Months Ended June 30						Three Months Ended June 30
	2013			2012			2013		2012
Components of Net Periodic Pension Cost:
Service cost	$	458		$	584		$	192	$	184
Interest cost	1,951			1,934			151		171
Expected return on plan assets	(2,484		)	(2,581		)	—		—
Amortization of net actuarial loss	153			294			56		8
Net periodic pension cost	$	78		$	231		$	399	$	363

	United Kingdom Plans						German Plan
	Six Months Ended June 30						Six Months Ended June 30
	2013			2012			2013			2012
Components of Net Periodic Pension Cost:
Service cost	$	922		$	1,163		$	386		$	370
Interest cost	3,931			3,850			304			344
Expected return on plan assets	(5,005		)	(5,138		)	—			—
Amortization of net actuarial loss	309			586			113			16
Net periodic pension cost	$	157		$	461		$	803		$	730
Assumptions Used to Determine Net Periodic Pension Cost:
Discount rate	4.60		%	4.60		%	3.50		%	5.40		%
Expected rate of return on assets	5.30		%	5.90		%	n/a			n/a
Salary increases	3.60		%	4.00		%	2.00		%	2.50		%

Supplemental Executive Retirement Plan

Defined benefit plans disclosure

Schedule of components of and the assumptions used to determine net periodic pension cost

	Three Months Ended June 30						Six Months Ended June 30
	2013			2012			2013			2012
Components of Net Periodic Pension Cost:
Service cost	$	377		$	370		$	754		$	739
Interest cost	181			194			362			388
Amortization of prior service credit	(30		)	(30		)	(60		)	(59		)
Amortization of net actuarial loss	142			67			284			134
Net periodic pension cost	$	670		$	601		$	1,340		$	1,202
Assumptions Used to Determine Net Periodic Pension Cost:
Discount rate	3.20		%	4.30		%	3.20		%	4.30		%
Salary increases	3.25		%	3.75		%	3.25		%	3.75		%

Post-Employment Retiree Health and Welfare Plan

Defined benefit plans disclosure

Schedule of components of and the assumptions used to determine net periodic pension cost

	Three Months Ended June 30						Six Months Ended June 30
	2013			2012			2013			2012
Components of Net Periodic Post-retirement Benefit Cost:
Service cost	$	18		$	24		$	36		$	48
Interest cost	59			73			119			146
Amortization of net actuarial loss	—			10			—			19
Net periodic post-retirement benefit cost	$	77		$	107		$	155		$	213
Assumptions Used to Determine Net Periodic Post-retirement Benefit Cost:
Discount rate	3.60		%	4.60		%	3.60		%	4.60		%
Health care cost trend rate	7.50		%(a)	8.00		%	7.50		%(a)	8.00		%

(a) decreasing to ultimate trend of 5.00% in 2018