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Reinsurance - Excess of Loss Reinsurance (Details)	12 Months Ended
	Dec. 31, 2024
Radnor Re 2019-1 Ltd.
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Retired percent	100.00%
Radnor Re 2020-1
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Retired percent	99.00%
VIE | Reinsurance Policy, Type [Axis]: Mortgage Insurance | Mortgage Insurance Linked Notes | Radnor Re
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance debt issued to cover insurance term	10 years
VIE | Radnor Re | Reinsurance Policy, Type [Axis]: Mortgage Insurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Amortization period	10 years

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-Number 210
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