v3.26.3
Debt - Ark Standby Letters of Credit (Details) - Letter of Credit - Line of Credit - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2022
Dec. 31, 2021
Citibank LOC Facility      
Debt Instrument      
Total commitment under revolving credit facility     $ 125.0
Letters of credit outstanding $ 58.5    
Pledged collateral 64.8    
Lloyds LOC Facility      
Debt Instrument      
Total commitment under revolving credit facility   $ 100.0  
Letters of credit outstanding 24.0    
Pledged collateral $ 26.3