Inventories Net (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Inventory Disclosure
Finished products	$ 397,684	$ 368,334	$ 366,558
Products in process and raw materials	58,678	16,077	19,924
Supplies and expendable parts	127,319	61,922	61,441
Inventories, Gross	583,681	446,333	447,923
Less: Allowances	(108,388)	(99,026)	(97,485)
Total	$ 475,293	$ 347,307	$ 350,438

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

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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.

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

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer.

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