Amount Related to Foreign Benefit Plans (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, Ending Balance	$ 533,108	$ 463,546
Foreign Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, Ending Balance	211,799	184,550
Fair value of plan assets, Ending Balance	188,575	164,111
Net plan liabilities recognized	23,224	20,439
Net periodic benefit expense	12,622	11,022
Foreign Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, Ending Balance	541	525
Fair value of plan assets, Ending Balance	0	0
Net plan liabilities recognized	541	525
Net periodic benefit expense	$ 92	$ 88