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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2021 | Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Deferred revenue contract liabilities | $ 59.6 | $ 59.6 | $ 73.0
Deferred revenue recognized |  | $ 35.2 |
Contracts with customers | Sales Revenue | Customer Concentration Risk |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Consolidated revenues, net (percent) | 75.00% | 75.00% |
Maximum |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Derivative term of contract |  | 1 year |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01 |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenues to be recognized | $ 37.9 | $ 37.9 |
Revenues to be recognized, period | 12 months | 12 months |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01 |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenues to be recognized | $ 21.7 | $ 21.7 |
Revenues to be recognized, period | 5 years | 5 years |

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