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Debt - Export Credit Financing Agreement (Details) - Export credit financing agreement - USD ($)
12 Months Ended
Dec. 31, 2021
Jan. 14, 2022
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 150,000,000  
Amount available for use 150,000,000  
Subordination Agreement    
Debt Instrument [Line Items]    
Consolidated funded indebtedness 0  
Refinancing indebtedness $ 0  
Subsequent Event    
Debt Instrument [Line Items]    
Amounts borrowed   $ 150,000,000
SOFR Rate    
Debt Instrument [Line Items]    
Contractual spread 1.60%