Schedule of Defined Benefit Pension and Postretirement Benefit Plan Assets and Obligation (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure
Actuarial (gain) loss	$ 10,340	$ (23,320)	$ (13,564)
Fair value of plan assets, beginning balance	302,899
Fair value of plan assets, ending balance	282,129	302,899
Defined Benefit Pension Plans
Defined Benefit Plan Disclosure
Projected benefit obligation, Beginning of year	376,498	390,278
Service cost	3,427	2,787	2,735
Interest cost	13,266	15,670	17,466
Actuarial (gain) loss	(32,279)	31,912
Benefits paid	(16,169)	(65,650)
Plan participants' contributions	95	108
Non-U.S. currency movement	1,256	1,393
Projected benefit obligation, End of year	346,094	376,498	390,278
Fair value of plan assets, beginning balance	302,899	339,580
Company contributions	4,260	3,306
Plan participants' contributions	95	108
Actual return on plan assets	(9,373)	24,621
Benefits paid	(16,169)	(65,650)
Non-U.S. currency movement	417	934
Fair value of plan assets, ending balance	282,129	302,899	339,580
Funded status	(63,965)	(73,599)
Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure
Projected benefit obligation, Beginning of year	11,907	12,793
Service cost	75	67	59
Interest cost	342	437	539
Actuarial (gain) loss	(2,025)	82
Benefits paid	(1,280)	(1,472)
Projected benefit obligation, End of year	9,019	11,907	12,793
Company contributions	1,280	1,472
Benefits paid	(1,280)	(1,472)
Funded status	$ (9,019)	$ (11,907)