Pensions and Postretirement Benefits Other than Pensions - Components of Net Periodic Benefit Costs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Components of net periodic benefit cost:
Amortization of actuarial loss	$ 12,469	$ 11,620	$ 24,948	$ 23,403
Pension Benefits - Domestic [Member]
Components of net periodic benefit cost:
Service cost	2,970	2,354	5,940	4,708
Interest cost	9,657	10,714	19,314	21,428
Expected return on plan assets	(11,889)	(10,754)	(23,778)	(21,510)
Amortization of actuarial loss	11,086	9,205	22,172	18,409
Net periodic benefit cost	11,824	11,519	23,648	23,035
Pension Benefits - International [Member]
Components of net periodic benefit cost:
Service cost	3	1	6	752
Interest cost	3,841	4,291	7,727	8,442
Expected return on plan assets	(3,674)	(3,903)	(7,392)	(7,479)
Amortization of prior service cost				(184)
Amortization of actuarial loss	904	1,647	1,818	3,456
Cooper Avon curtailment gain		(7,460)		(7,460)
Net periodic benefit cost	1,074	(5,424)	2,159	(2,473)
Other Post Retirement Benefits [Member]
Components of net periodic benefit cost:
Service cost	954	1,041	1,907	2,081
Interest cost	2,698	3,133	5,396	6,266
Amortization of prior service cost	(142)	(172)	(284)	(344)
Amortization of actuarial loss	479	769	958	1,538
Net periodic benefit cost	$ 3,989	$ 4,771	$ 7,977	$ 9,541