Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2016		Sep. 30, 2016	[1]	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015		Sep. 30, 2015	[2]	Jun. 30, 2015	[2]	Mar. 31, 2015	[2]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Capitalized interest recorded as part of the cost of the assets																	$ 1,500	$ 1,000	$ 400
Operating Income (Loss)																	299,730	319,812	360,853
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 23,694	[1]	$ 69,770		$ 33,315		$ 26,572		$ 26,549	[2]	$ 70,316		$ 42,244		$ 33,304		$ 153,351	$ 172,413	$ 182,391
Earnings Per Share, Diluted	$ 0.41	[1],[3]	$ 1.15	[3]	$ 0.55	[3]	$ 0.44	[3]	$ 0.44	[2],[3]	$ 1.16	[3]	$ 0.70	[3]	$ 0.53	[3]	$ 2.55	$ 2.81	$ 2.86
Other assets, net	$ 244,764								$ 214,109								$ 244,764	$ 214,109
Accrued liabilities	(93,625)								(106,550)								(93,625)	(106,550)
Other liabilities	$ (473,694)								$ (411,133)								$ (473,694)	$ (411,133)
Building
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life (in years)																	35 years
Machinery and Equipment [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life (in years)																	3 years
Machinery and Equipment [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful life (in years)																	20 years
Customer Relationships [Member]
Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life																	18 years
Other Intangible Assets [Member]
Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life																	8 years

[1] The first, second, third and fourth quarters of 2016 include rationalization charges of $1.1 million, $5.0 million, $7.8 million and $5.1 million, respectively. The fourth quarter of 2016 includes costs attributed to announced acquisitions of $1.4 million.

[2] The first, second, third and fourth quarters of 2015 include rationalization charges of $0.7 million, $1.0 million, $9.1 million and $3.6 million, respectively.

[3] Net income per share data is computed independently for each of the periods presented. Accordingly, the sum of the quarterly earnings per share amounts may not equal the total for the year.