Recognized Amounts in Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule of Postemployment Benefits [Line Items]
Noncurrent liabilities	$ 28,273	$ 28,013
U.S. Pension Plans
Schedule of Postemployment Benefits [Line Items]
Noncurrent liabilities	17,701	18,180
Net amount recognized	17,701	18,180
Non-U.S. Pension Plans
Schedule of Postemployment Benefits [Line Items]
Noncurrent liabilities	9,829	8,819
Net amount recognized	9,829	8,819
Other Post-Retirement Benefit Plans
Schedule of Postemployment Benefits [Line Items]
Current liabilities	175	288
Noncurrent liabilities	743	1,014
Net amount recognized	$ 918	$ 1,302