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v3.23.3

Debt and Credit Facility - Summary of Senior Notes (Details) - Senior Notes - USD ($) $ in Millions | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2019
Debt Instrument [Line Items] |  |  |  |
Total debt | $ 1,050.0 | $ 1,050.0 |  |
Unamortized issuance costs | (10.6) | (11.9) |  |
Total carrying amount | $ 1,039.4 | 1,038.1 |  |
4.50% Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Issuance Date | May 21, 2021 |  |  |
Debt Instrument, Maturity Date | Jun. 30, 2031 |  |  |
Effective interest rate (percent) | 4.70% |  |  |
Total debt | $ 550.0 | 550.0 | $ 550.0 | $ 550.0
6.50% Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Issuance Date, Start | 2020-04 |  |  |
Issuance Date, End | 2020-05 |  |  |
4.625% Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Issuance Date | Nov. 30, 2019 |  |  |
Debt Instrument, Maturity Date | Mar. 31, 2028 |  |  |
Effective interest rate (percent) | 4.80% |  |  |
Total debt | $ 500.0 | $ 500.0 | $ 500.0 | $ 500.0

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