Retirement Benefits (Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 323	$ 326	$ 645	$ 763
Interest cost	1,053	1,209	2,106	2,152
Expected return on plan assets	(1,408)	(1,310)	(2,816)	(2,663)
Net amortization	674	1,377	1,374	2,991
Net periodic benefit cost	642	1,602	1,309	3,243
Non-U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	392	345	766	684
Interest cost	605	533	1,204	1,052
Expected return on plan assets	(329)	(260)	(657)	(516)
Net amortization	219	237	439	468
Net periodic benefit cost	887	855	1,752	1,688
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	179	242	357	485
Interest cost	233	227	466	454
Net amortization	(119)	6	(237)	11
Net periodic benefit cost	$ 293	$ 475	$ 586	$ 950