Components of Calculation of Earnings Per Share (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
Net income	$ 23,276	[1]	$ 77,175	[1]	$ 59,529	[1]	$ 25,433	[1]	$ 29,359	[2]	$ 78,657	[2]	$ 10,580	[2]	$ 32,750	[2]	$ 185,413	$ 151,346	$ 193,173
Weighted average number of shares used in:
Basic earnings per share																	64,254	69,571	69,996
Dilutive common stock equivalents:
Stock options and restricted stock units																	404	318	386
Diluted earnings per share																	64,658	69,889	70,382

[1] The first, second, third and fourth quarters of 2013 include rationalization charges of $1.4 million, $0.9 million, $1.3 million and $8.4 million, respectively. The first quarter of 2013 includes plant start-up costs of $0.8 million. The first, third and fourth quarters of 2013 include costs attributable to announced acquisitions of $0.2 million and $1.0 million and $0.3 million, respectively. The first quarter of 2013 includes a loss on early extinguishment of debt of $2.1 million and a charge of $3.0 million for the remeasurement of net assets in Venezuela due to a currency devaluation.

[2] The first, second, third and fourth quarters of 2012 include rationalization charges of $3.6 million, $0.2 million, $2.0 million and $2.9 million, respectively. The first, second, third and fourth quarters of 2012 include plant start-up costs of $1.0 million, $1.9 million, $1.4 million and $2.1 million, respectively. The second and third quarters of 2012 include costs attributable to announced acquisitions of $0.7 million and $0.8 million, respectively. The second quarter of 2012 includes a loss on early extinguishment of debt of $38.7 million.