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v3.21.2

Long-term Debt and Short-term Borrowings (Amended Maximum Consolidated Leverage Ratio) (Details) - Senior Secured Credit Facility Due March 2026 - Secured Debt | Jun. 30, 2021 | Nov. 10, 2020
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Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio | 5.25 |
March 2021 |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 5.25
June 2021 |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 5.25
September 2021 |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 4.75
December 2021 |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 4.25
March 2022 |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 4.25
June 2022 |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 4.25
September 2022 and thereafter |  |
Line of Credit Facility [Line Items] |  |
Maximum consolidated leverage ratio |  | 3.75

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