Schedule of Expected Future Benefit Payments (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Post-Retirement Benefit Plans
Schedule of Pension Expected Future Benefit Payments [Line Items]
2014	$ 1,042
2015	981
2016	969
2017	853
2018	818
2019-2023	3,051
United States | Defined Benefit Pension Plans
Schedule of Pension Expected Future Benefit Payments [Line Items]
2014	14,607
2015	16,124
2016	16,636
2017	17,370
2018	18,011
2019-2023	98,269
Foreign | Defined Benefit Pension Plans
Schedule of Pension Expected Future Benefit Payments [Line Items]
2014	1,177
2015	1,085
2016	959
2017	1,085
2018	1,140
2019-2023	$ 8,946