Defined Benefit Plans and Other Postretirement Benefits Disclosure (Tables)

6 Months Ended

Jun. 30, 2011

Defined Benefit Plans and Other Postretirement Benefits Disclosure (Tables) [Abstract]

Defined benefit plans and other postretirement benefits disclosure

				Pension Benefits - Domestic
	Three months ended June 30						Six months ended June 30
	2010			2011			2010			2011
Components of net periodic benefit cost:
Service cost	$	1,079		$	1,925		$	2,158		$	3,850
Interest cost		11,349			11,250			22,697			22,500
Expected return on plan assets		(12,527	)		(12,527	)		(25,054	)		(25,053	)
Amortization of actuarial loss		6,943			7,575			13,886			15,150
Recognized actuarial loss		1,421			—			4,751			—
Net periodic benefit cost	$	8,265		$	8,223		$	18,438		$	16,447

				Pension Benefits - International
	Three months ended June 30						Six months ended June 30
	2010			2011			2010			2011
Components of net periodic benefit cost:
Service cost	$	561		$	634		$	1,149		$	1,258
Interest cost		4,083			4,579			8,359			9,077
Expected return on plan assets		(3,679	)		(4,232	)		(7,531	)		(8,390	)
Amortization of prior service cost		(149	)		(189	)		(307	)		(377	)
Amortization of actuarial loss		1,429			1,467			2,926			2,909
Net periodic benefit cost	$	2,245		$	2,259		$	4,596		$	4,477

				Other Postretirement Benefits
	Three months ended June 30						Six months ended June 30
	2010			2011			2010			2011
Components of net periodic benefit cost:
Service cost	$	791		$	776		$	1,581		$	1,552
Interest cost		3,529			3,461			7,058			6,923
Amortization of prior service cost		(136	)		(172	)		(272	)		(344	)
Amortization of actuarial loss		—			316			—			631
Net periodic benefit cost	$	4,184		$	4,381		$	8,367		$	8,762