UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement Of Stockholders Equity [Abstract]
Class A Cash Dividends Declared and Paid (in USD per share)	$ 0.03	$ 0.03	$ 0.46	$ 0.03	$ 0.03	$ 0.49