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Debt - Senior Notes and Junior Subordinated Notes (Details) - 4.200% Junior Subordinated Notes due 2061 - Junior subordinated notes - Subsequent Event | Jul. 13, 2021 USD ($)
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Debt Instrument [Line Items] |
Face amount | $ 200,000,000.0
Debt interest rate | 4.20%
Issuance price, percentage of principal amount | 1
On or after September 30, 2026 |
Debt Instrument [Line Items] |
Redemption price percentage | 100.00%
If changes in tax laws and interpretations occur |
Debt Instrument [Line Items] |
Redemption price percentage | 100.00%
If a rating agency makes certain changes relating to the equity credit criteria for securities |
Debt Instrument [Line Items] |
Redemption price percentage | 102.00%

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