Reconciliation Of Changes In Benefit Obligations And Fair Value Of Plan Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets at December 31	$ 94,238		$ 76,141
Noncurrent liabilities	(96,853)		(91,542)
Pension Plans | U S Plans
Defined Benefit Plan Disclosure [Line Items]
Obligation at January 1	101,511		90,102
Service cost	1,756		1,759
Interest cost	4,247		4,506
Plan amendments	59
Benefits paid	(4,097)		(4,224)
Actuarial loss	13,202		10,159
Curtailments/settlements	(5,490)		(791)
Obligation at December 31	111,188		101,511
Fair value of plan assets at January 1	59,619		58,147
Actual return on plan assets	6,177		(459)
Employer contributions	17,287	[1]	6,946	[1]
Settlements	(4,408)		(791)
Fair value of plan assets at December 31	74,578		59,619
Funded status at December 31	(36,610)		(41,892)
Current liabilities	(588)		(602)
Noncurrent liabilities	(36,022)		(41,290)
Net liability at December 31	(36,610)		(41,892)
Pension Plans | U S Plans | Defined Benefit Plan Benefit Obligations
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	(4,097)		(4,224)
Pension Plans | Non U S Plans
Defined Benefit Plan Disclosure [Line Items]
Obligation at January 1	47,763		42,245
Service cost	1,300		1,078
Interest cost	2,206		2,320
Plan amendments	410		9
Benefits paid	(3,536)		(1,703)
Actuarial loss	6,700		18
Currency translation	1,712		(906)
Acquisition			4,702
Obligation at December 31	56,555		47,763
Fair value of plan assets at January 1	16,914		17,400
Actual return on plan assets	1,944		(720)
Employer contributions	3,514	[1]	1,569	[1]
Currency translation	810		(57)
Other	14		425
Fair value of plan assets at December 31	19,660		16,914
Funded status at December 31	(36,894)		(30,849)
Current liabilities	(743)		(733)
Noncurrent liabilities	(36,151)		(30,116)
Net liability at December 31	(36,894)		(30,849)
Pension Plans | Non U S Plans | Defined Benefit Plan Benefit Obligations
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	(3,536)		(1,703)
Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Obligation at January 1	21,073		20,068
Service cost	763		691		528
Interest cost	922		1,035		1,008
Plan amendments	159
Benefits paid	(704)		(734)
Actuarial loss	3,313		60
Currency translation	61		(47)
Obligation at December 31	25,587		21,073		20,068
Employer contributions	704	[1]	734	[1]
Funded status at December 31	(25,587)		(21,073)
Current liabilities	(907)		(937)
Noncurrent liabilities	(24,680)		(20,136)
Net liability at December 31	(25,587)		(21,073)
Other Postretirement Benefit Plans | Defined Benefit Plan Benefit Obligations
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	$ (704)		$ (734)

[1] Includes $10.0 million discretionary contribution to U.S. plan in 2012.