Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments Narrative (Details)

v3.20.2
Financial Instruments Narrative (Details)
€ in Thousands, $ in Thousands, MMBTU in Millions
1 Months Ended 9 Months Ended
Mar. 18, 2020
USD ($)
Feb. 20, 2020
USD ($)
Nov. 30, 2018
USD ($)
Jul. 31, 2016
USD ($)
Sep. 30, 2020
USD ($)
MMBTU
Feb. 28, 2018
EUR (€)
Cash flow hedging            
Derivative            
Amount of derivative loss expected to be transferred from OCI         $ 48  
Cash flow hedging | Natural gas swaps            
Derivative            
Derivative, notional quantity | MMBTU         2.0  
Cash flow hedging | July 2016 interest rate caps            
Derivative            
Premium paid to acquire derivative instrument       $ 1,551    
Derivative, cap interest rate         0.84%  
Derivative, notional amount       $ 1,000,000    
Cash flow hedging | July 2016 interest rate caps | Minimum            
Derivative            
Derivative, cap interest rate       1.50%    
Cash flow hedging | July 2016 interest rate caps | Maximum            
Derivative            
Derivative, cap interest rate       3.00%    
Cash flow hedging | November 2018 interest rate caps            
Derivative            
Premium paid to acquire derivative instrument $ 900 $ 130 $ 3,380   $ 4,410  
Derivative, cap interest rate 0.84% 2.50% 3.50%      
Derivative, notional amount     $ 500,000      
Cash flow hedging | July 2020 Interest Rate Cap [Member]            
Derivative            
Derivative, cap interest rate         1.00%  
Derivative, notional amount         $ 400,000  
Net investment hedging | Cross-currency interest rate swaps            
Derivative            
Derivative, notional amount         $ 328,832 € 280,000