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Borrowings (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Mar. 16, 2022
Sep. 30, 2022
Mar. 31, 2023
Mar. 31, 2022
Jul. 01, 2022
Debt Instrument [Line Items]          
Repayments of senior debt and subordinated debt     $ 0 $ 65,057  
Payments for repurchase of trust preferred debt   $ 17,200      
Prudential          
Debt Instrument [Line Items]          
Short-term borrowings         $ 284,000
Senior Notes | 3.60% Senior Notes          
Debt Instrument [Line Items]          
Repayments of senior debt and subordinated debt $ 65,000        
Debt instrument, interest rate (as a percent) 3.60%