Unrecognized Tax Benefits Recorded on Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Balance Sheet Classification of Deferred Income Tax Assets and Liabilities [Line Items]
Total unrecognized tax benefits balance	$ 695,285	$ 727,367	$ 532,862
Amounts netted against related deferred tax assets	(89,048)	(83,635)
Unrecognized tax benefits recorded on consolidated balance sheets	606,237	643,732
Amounts classified as accrued expenses and other current liabilities		30,484
Amounts classified as deferred and other long-term tax liabilities, net	606,237	613,248
Unrecognized tax benefits recorded on consolidated balance sheets	$ 606,237	$ 643,732