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Related Party Transactions (Narrative) (Details) - USD ($)		3 Months Ended	9 Months Ended
	Mar. 23, 2021	Mar. 27, 2021	Jun. 26, 2021	Mar. 19, 2021
Related Party Transaction [Line Items]
Aggregate purchase price of the stock repurchased		$ 79,998,588
Share Repurchase Program [Member]
Related Party Transaction [Line Items]
Loan repaid in full amount			$ 400,000
Common Stock [Member] | Share Repurchase Program [Member]
Related Party Transaction [Line Items]
Shares repurchased during the period	1,300,000
Aggregate purchase price of the stock repurchased	$ 80,000,000.0
Common Stock [Member] | Share Repurchase Program [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Aggregate number of shares authorized for repurchase				2,000,000.0
Common Stock [Member] | Class B Common Stock [Member]
Related Party Transaction [Line Items]
Shares repurchased during the period		1,265,400
Aggregate purchase price of the stock repurchased		$ 63,270

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Gross amount of debt extinguished.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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