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Related Party Transactions - Narrative (Details) - Class B common stock | Oct. 09, 2018 | Oct. 08, 2018
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Terence E. Adderley Revocable Trust K [Member] |  |
Related Party Transaction [Line Items] |  |
Ownership percentage of parent company | 91.50% |
Executive Chairman and Chairman of the Board and Director | Terence E. Adderley |  |
Related Party Transaction [Line Items] |  |
Ownership percentage of parent company |  | 91.50%

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