Organization and Summary of Significant Accounting Policies - Earnings Per Share and Common Stock (Details) - Common Class B	Sep. 30, 2020 vote
Class of Stock [Line Items]
Number of votes per share	1
Convertible common stock conversion ratio	100.00%

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.

No definition available.

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