Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Net Periodic Pension and Other Postretirement Benefit Costs

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

	U.S. Plan						U.S. Plan
	Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
	June 30, 2012			June 30, 2011			June 30, 2012			June 30, 2011
Components of net periodic benefit cost/(income):
Service cost	$	—		$	—		$	—		$	—
Interest cost	266			301			532			602
Expected return on plan assets	(322		)	(324		)	(644		)	(648		)
Recognized loss	41			—			81			—
Net periodic benefit cost/(income)	$	(15	)	$	(23	)	$	(31	)	$	(46	)
	Australian Plan						Australian Plan
	Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
	June 30, 2012			June 30, 2011			June 30, 2012			June 30, 2011
Components of net periodic benefit cost/(income):
Service cost	$	234		$	341		$	480		$	633
Interest cost	406			615			830			1,142
Expected return on plan assets	(370		)	(560		)	(756		)	(1,040		)
Recognized loss	—			—			—			—
Net periodic benefit cost	$	270		$	396		$	554		$	735
	Canadian Plan						Canadian Plan
	Three Months Ended			Three Months Ended			Six Months Ended			Six Months Ended
	June 30, 2012			June 30, 2011			June 30, 2012			June 30, 2011
Components of net periodic benefit cost/(income):
Service cost	$	48		$	45		$	97		$	90
Interest cost	49			(18		)	98			(36		)
Expected return on plan assets	(65		)	—			(132		)	—
Recognized loss	1			—			3			—
Net periodic benefit cost	$	33		$	27		$	66		$	54