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Income Taxes (Narrative) (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Reconciliation Tax Settlements [Abstract]      
Total current benefit (expense) $ (36,353,000) $ 3,668,000 $ (17,966,000)
Total deferred benefit 158,170,000 304,611,000 143,944,000
Deferred Tax Assets Net Current Classification [Abstract]      
Current net deferred tax assets included in net deferred tax liabilities 52,000,000 19,200,000  
Foreign deferred tax liabilities 19,800,000 30,300,000  
Foreign net operating loss carryforwards 170,800,000    
Deferred tax asset foreign other 23,500,000    
Net deferred tax liabilities 1,485,853,000 1,670,626,000  
Deferred Tax Assets Operating Loss Carryforwards Components [Abstract]      
Net operating loss carryforwards (1,287,239,000) (1,278,894,000)  
Net operating loss carryforwards (tax effected) 1,100,000,000    
Latest expiration date of net operating loss carryforwards 2033    
Deferred tax assets related to stock-based compensation expense included in net deferred tax liabilities 27,100,000,000    
Reduction to income tax expense to reflect the net benefits of tax settlements 20,200,000 60,600,000  
Foreign income before taxes 48,300,000 84,000,000 94,000,000
Valuation Allowance [Abstract]      
Valuation allowance 143,500,000   16,300,000
Valuation allowance foreign 156,800,000    
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued [Abstract]      
Interest and penalties accrued related to unrecognized tax benefits 49,400,000 50,500,000  
Total unrecognized tax benefits and accrued interest and penalties 178,800,000 188,900,000  
Portion of unrecognized tax benefits, interest and penalties recorded in "Other long-term liabilities" 131,000,000 158,300,000  
Noncurrent portion of unrecognized tax benefits netted against deferred tax assets 36,100,000    
Unrecognized tax benefits that would impact effective tax rate 100,100,000 107,000,000  
Income tax settlement inclusive of interest paid to foreign tax agencies   7,200,000  
Portion of unrecognized tax benefits included in "Accrued Expenses" $ 11,600,000 $ 500,000  
Effective tax rate 17.00% 43.00% 32.00%