Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Income Taxes (Summary Of Income Tax Expense (Benefit) By Tax Jurisdiction) (Details)

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Income Taxes (Summary Of Income Tax Expense (Benefit) By Tax Jurisdiction) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) $ 110,353,000 $ 115,859,000 $ 21,186,000
Provision for income taxes 189,805,000 137,373,000 26,026,000
The Netherlands [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) (7,453,000) 1,339,000 686,000
Deferred tax expense (benefit) related to an increase (decrease) in changes in valuation allowance of deferred tax assets 13,915,000    
Current tax expense (benefit) 37,512,000 5,290,000 4,840,000
Ireland [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) 151,623,000 87,147,000 17,158,000
Deferred tax expense (benefit) related to an increase (decrease) in changes in valuation allowance of deferred tax assets 0    
Current tax expense (benefit) (99,000) 229,000  
United States Of America [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) (65,341,000) 26,267,000 3,686,000
Deferred tax expense (benefit) related to an increase (decrease) in changes in valuation allowance of deferred tax assets 10,074,000    
Current tax expense (benefit) 39,358,000 15,553,000  
Other [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) 22,130,000 (5,744,000) (344,000)
Deferred tax expense (benefit) related to an increase (decrease) in changes in valuation allowance of deferred tax assets (13,922,000) 6,850,000  
Current tax expense (benefit) 2,008,000 442,000  
Deferred Tax Expense (Benefit) [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) 100,959,000 109,009,000 21,186,000
Deferred Tax Expense (Benefit) Related To An Increase (Decrease) In Changes In Valuation Allowance Of Deferred Tax Assets [Member]      
Income Tax Disclosure [Line Items]      
Deferred tax expense (benefit) related to an increase (decrease) in changes in valuation allowance of deferred tax assets 10,067,000 6,850,000  
Current Tax Expense (Benefit) [Member]      
Income Tax Disclosure [Line Items]      
Current tax expense (benefit) $ 78,779,000 $ 21,514,000 $ 4,840,000