Stockholders Equity - Schedule of Dividends Declared (Detail) - $ / shares	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Class A Common Stock
Dividends Payable [Line Items]
Cash dividend per share (in dollars per share)	$ 0.24	$ 0.23
Class B Common Stock
Dividends Payable [Line Items]
Cash dividend per share (in dollars per share)	$ 0.24	$ 0.23