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Derivative Instruments and Hedging Activities - Additional Information (Details)
€ in Thousands
Jun. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2020
EUR (€)
Aug. 31, 2020
EUR (€)
Aug. 31, 2019
USD ($)
Aug. 31, 2019
EUR (€)
Jul. 31, 2019
USD ($)
Net Investment Hedges                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Cumulative net gains $ (13,797,000)              
Net Investment Hedges | Designated as Hedging Instrument | Euro Notes                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Hedged notes | €         € 300,000      
Cumulative net gains 3,256,000              
Interest Rate Swap Agreements                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Notional amount $ 350,000,000 $ 350,000,000           $ 350,000,000
Cross-currency Swap Agreements | Net Investment Hedges                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Notional amount     $ 359,200,000 € 300,000   $ 110,000,000 € 99,055  
Interest rate     4.50% 4.50%   6.00% 6.00%  
Weighted average interest rate     3.40% 3.40%   3.65% 3.65%