Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 192,292us-gaap_InventoryRawMaterials	$ 184,714us-gaap_InventoryRawMaterials	$ 185,848us-gaap_InventoryRawMaterials
Work-in-process	119,607us-gaap_InventoryWorkInProcess	115,308us-gaap_InventoryWorkInProcess	122,083us-gaap_InventoryWorkInProcess
Finished goods	456,958us-gaap_InventoryFinishedGoods	338,562us-gaap_InventoryFinishedGoods	424,236us-gaap_InventoryFinishedGoods
Other	14,342us-gaap_OtherInventory	13,541us-gaap_OtherInventory	13,136us-gaap_OtherInventory
Inventory, Gross, Total	783,199us-gaap_InventoryGross	652,125us-gaap_InventoryGross	745,303us-gaap_InventoryGross
Adjustment to value inventory at cost on the LIFO method	(103,021)us-gaap_InventoryLIFOReserve	(103,360)us-gaap_InventoryLIFOReserve	(96,580)us-gaap_InventoryLIFOReserve
Inventories	$ 680,178us-gaap_InventoryNet	$ 548,765us-gaap_InventoryNet	$ 648,723us-gaap_InventoryNet

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

+ References

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- Definition

Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

+ Details

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- Definition

Amount of difference between inventory at lower of LIFO cost or market and inventory at lower of other inventory accounting method cost or market, for example, but not limited to, FIFO or average cost.

+ References

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- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=51655945&loc=d3e3927-108312

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

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- Definition

Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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- Definition

Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

+ References

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- Definition

Amount before valuation and LIFO reserves of other inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

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