v3.21.2
Derivative financial instruments (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Breakdown of fair value amount of derivative financial instruments [Abstract]      
Loss on cash flow hedges $ 44,643 $ 43,792  
Cash Flow Hedge [Member]      
Breakdown of fair value amount of derivative financial instruments [Abstract]      
Assets 6,818   $ 1,559
Liabilities $ 249,639   328,184
Interest Rate Derivatives [Member] | Euros [Member]      
Breakdown of fair value amount of derivative financial instruments [Abstract]      
Percent of notional amount of debt hedged in next 12 months 100.00%    
Percentage of notional amount of debt hedged in year two 75.00%    
Interest Rate Derivatives [Member] | Cash Flow Hedge [Member]      
Breakdown of fair value amount of derivative financial instruments [Abstract]      
Assets $ 4,101   898
Liabilities 237,664   302,302
Loss on cash flow hedges (44,600) $ (43,800)  
After-tax result accumulated in equity 147,900   96,600
Foreign Exchange Derivative Instruments [Member] | Cash Flow Hedge [Member]      
Breakdown of fair value amount of derivative financial instruments [Abstract]      
Assets 2,717   661
Liabilities 0   0
Notes Conversion Option [Member] | Cash Flow Hedge [Member]      
Breakdown of fair value amount of derivative financial instruments [Abstract]      
Assets 0   0
Liabilities $ 11,975   $ 25,882