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Debt and Credit Facility - Summary of Interest Relating to Senior Notes and Revolving Credit Facility (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |
Total interest expense | $ 48.3 | $ 49.5 | $ 40.9
Senior Notes and Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense capitalized as construction in progress | (3.6) | (1.2) | (1.0)
Total interest expense | 48.3 | 49.5 | 40.9
Revolving Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Revolving Credit Facility commitment fees and finance cost amortization | 2.3 | 1.7 | 1.7
Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Senior Notes interest expense, including debt issuance cost amortization | $ 49.6 | $ 49.0 | $ 40.2

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