Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Related Party Transactions - Narrative (Details) - Class B common stock	Oct. 09, 2018	Oct. 08, 2018
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%