Debt (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Sep. 30, 2023	Jun. 30, 2023
Debt Instrument [Line Items]
Derivative, Fixed Interest Rate	4.39%
LIBOR Plus Two Point One Two Five Percent Junior Subordinated Notes Due Two Thousand Sixty Seven | Credit Spread Adjustment
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		2.125%
SOFR Plus Two Point One Two Five Percent Plus Zero Point Two Six One Six One Percent Junior Subordinated Notes Due Two Thousand Sixty Seven
Debt Instrument [Line Items]
Junior Subordinated Debentures	$ 500
SOFR Plus Two Point One Two Five Percent Plus Zero Point Two Six One Six One Percent Junior Subordinated Notes Due Two Thousand Sixty Seven | Tenor Spread Adjustment
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.26161%
SOFR Plus Two Point One Two Five Percent Plus Zero Point Two Six One Six One Percent Junior Subordinated Notes Due Two Thousand Sixty Seven | Credit Spread Adjustment
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.125%