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v3.23.1

Debt - Junior Convertible Securities (Details) $ / shares in Units, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) d $ / shares | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($)
Debt Instrument [Line Items] |  |  |
Debt | $ 2,535.9 |  | $ 2,535.3
Junior convertible securities |  |  |
Debt Instrument [Line Items] |  |  |
Debt | 338.7 |  | 338.6
Junior Convertible Trust Preferred Securities | Junior convertible securities |  |  |
Debt Instrument [Line Items] |  |  |
Debt | $ 341.7 |  |
Debt interest rate | 5.15% |  |
Unamortized debt issuance costs | $ 3.0 |  | $ 3.1
Conversion ratio per share of common stock | 0.2558 |  |
Face amount of convertible security (in usd per share) | $ / shares | $ 50.00 |  |
Adjusted conversion price (in dollars per share) | $ / shares | $ 195.47 |  |
Convertible debt, threshold trading days | d | 20 |  |
Convertible debt, threshold consecutive trading days | d | 30 |  |
Debt instrument, convertible, threshold percentage | 1.30 |  |
Repayments of convertible debt |  | $ 16.5 |
Deferred tax liabilities, net, decrease resulting from repurchase of junior convertible securities |  | $ 2.7 |

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