Accrued Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Schedule of Accrued Liabilities [Line Items]
Litigation accrual	$ 137,800	$ 137,800
Royalties	55,904	97,051	47,643
Taxes other than income taxes	48,492	80,673	48,573
Advertising and promotion	9,378	87,878	44,978
Other	332,627	484,346	333,329
Total accrued liabilities	$ 584,201	$ 887,748	$ 474,523