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Accrued Expenses and Other Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Accounts Payable and Accrued Liabilities [Line Items]    
Income taxes payable $ 111,558 $ 72,673
Accrued products and licenses costs 35,731 27,582
Current deferred tax liability, net 8,546 6,362
Marketing expenses payable 9,126 11,834
Legal accrual 38,010 21,978
Purchase commitment to subcontractors 5,376 6,815
Accrued expenses 37,855 30,608
Accrued expenses and other liabilities total $ 246,202 $ 177,852