Pension and Other Post-Retirement Plans

3 Months Ended

Mar. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Pension and Other Post-Retirement Plans

Pension and Other Post-Retirement Plans

We have defined benefit pension plans for our U.K.-based union employees and certain Canadian-based employees (the “U.K. Plan” and the “Canadian Plan,” respectively). Retirement benefits under the U.K. Plan are based on an employee’s average compensation over the two years preceding retirement. Retirement benefits under the Canadian Plan are generally based on the number of years of credited service. Our policy is to fund the minimum contribution permissible by the applicable regulatory authorities.

The following table sets forth the combined amount of net periodic benefit cost recognized for the three months ended March 31, 2012 and 2011:

	Three Months Ended
	March 31,
	2012			2011
Components of net periodic pension benefit cost:
Service cost	$	568		$	462
Interest cost	1,147			1,173
Expected return on plan assets	(1,227		)	(1,162		)
Amortization of actuarial gains	251			95
Amortization of prior service costs	(19		)	(3		)
Net periodic cost	$	720		$	565

We have a 401(k) plan for U.S.-based employees. We contribute $37.5 cents on the dollar for the first 6% of participant contributions for a match of up to 2.25% of eligible compensation.