Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Compensation and Retirement Disclosure [Abstract]

Components of retirement plan expense

We sponsor or contribute to retirement plans covering substantially all employees. The expenses related to these plans were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Defined benefit plans	$	1,593	$	790	$	3,186	$	1,580
Defined contribution plan (401k plan) — company match	723		1,595		1,429		3,274
Other	462		353		918		701
	$	2,778	$	2,738	$	5,533	$	5,555

Components of net periodic pension expense

The components of net periodic pension expense for the Company-sponsored defined benefit plans are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Interest Cost	$	6,058		$	6,388		12,116			12,776
Expected return on plan assets	(6,268		)	(6,656		)	(12,536		)	(13,312		)
Net amortization and deferral	1,803			1,058			3,606			2,116
Net periodic pension expense	$	1,593		$	790		$	3,186		$	1,580