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Income taxes (Narrative) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
company
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Income Tax Disclosure [Line Items]      
Net deferred income tax liabilities $ 1,963,659 $ 781,899  
Deferred tax assets 121,571 131,532  
Deferred tax assets, gross 273,700    
Valuation allowance on tax assets 152,077 79,393 $ 74,361
Deferred tax liabilities 2,085,230 913,431  
Unrecognized tax benefits $ 37,500 $ 30,700  
Local statutory tax rate 12.50% 12.50% 12.50%
Number of significant group of U.S. companies that file a consolidated return | company 1    
Ireland      
Income Tax Disclosure [Line Items]      
Net deferred income tax liabilities $ 1,974,548 $ 812,372  
Valuation allowance on tax assets $ 10,664 $ 7,536  
Local statutory tax rate 12.50% 12.50% 12.50%
Operating loss carryforwards $ 7,700    
Ireland | No expiration date      
Income Tax Disclosure [Line Items]      
Operating loss carryforwards 13,800,000    
United States      
Income Tax Disclosure [Line Items]      
Valuation allowance on tax assets $ 112,177 $ 50,805  
Local statutory tax rate 21.00% 21.00% 21.00%
Federal and state income tax rate (in percentage) 21.30%    
United States | Between 2035 and 2038      
Income Tax Disclosure [Line Items]      
Operating loss carryforwards $ 310,700    
United States | No expiration date      
Income Tax Disclosure [Line Items]      
Operating loss carryforwards $ 90,900