Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
U.S. Pension Plans [Member]
Net periodic benefit cost
Discount rate	4.60%	3.80%	4.60%
Expected long-term rate of return	6.50%	6.50%	6.70%
Rate of compensation increase	3.00%	3.50%	3.50%
Non-U.S. Pension Plans [Member]
Net periodic benefit cost
Discount rate	3.80%	3.70%	4.30%
Expected long-term rate of return	5.20%	5.00%	5.90%
Rate of compensation increase	2.90%	2.80%	2.80%