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

Derivatives and Hedging Activities (Details)

v3.20.4
Derivatives and Hedging Activities (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Derivatives and Hedging Activities (Details) [Line Items]    
Gain (loss) on derivative instrument $ 6,200,000 $ 2,900,000
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]    
Derivatives and Hedging Activities (Details) [Line Items]    
Notional amount of derivative asset 74.9  
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]    
Derivatives and Hedging Activities (Details) [Line Items]    
Notional amount of derivative asset 42,000,000.0  
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]    
Derivatives and Hedging Activities (Details) [Line Items]    
Notional amount of derivative asset $ 10,400,000 $ 25,000,000.0