XML 50 R40.htm IDEA: XBRL DOCUMENT v3.23.1
Fair Value Measurements - Concentration of Credit Risk (Details) - One OTC Counterparty - Concentration of credit risk - Credit exposure
$ in Millions
3 Months Ended
Mar. 31, 2023
USD ($)
Concentration Risk [Line Items]  
Total credit risk $ 105.2
Concentration risk, percentage 10.00%
Cash collateral $ 21.7