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Related Party Transactions - Construction Management Firm and CCI - Narrative (Details) - CCI - Equipment - Immediate Family Member of Management - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Related Party Transaction [Line Items] |  |  |  |  |
Payments, net of rebates, related party | $ 8.0 | $ 1.8 | $ 18.6 | $ 3.2 |
Payables, related party | $ 3.4 |  | $ 3.4 |  | $ 4.2

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