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v3.21.2

Related Party Transactions - Management - Narrative (Details) - Management - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Equipment, Supplies and Services |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Payments, related party | $ 20,700,000 | $ 23,800,000 | $ 71,800,000 | $ 65,300,000 |
Payables, related party | 600,000 |  | 600,000 |  | $ 8,900,000
Revenue, related party | 800,000 | 900,000 | 2,900,000 | 3,200,000 |
Receivables, net, related party | 300,000 |  | 300,000 |  | 500,000
Subcontracting Arrangements |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Payments, related party | 41,100,000 | $ 0 | 86,900,000 | $ 600,000 |
Payables, related party | $ 7,100,000 |  | $ 7,100,000 |  | $ 1,400,000

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