Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		58 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Aug. 31, 2021	Feb. 28, 2021
Stockholders' Equity
Cost of shares of common stock repurchased	$ 141,412	$ 288,519
Common Class A [Member]
Stockholders' Equity
Authorized stock repurchase amount				$ 2,000,000	$ 1,000,000
Shares of common stock repurchased	2,320	4,653	27,394
Cost of shares of common stock repurchased	$ 141,412	$ 288,519	$ 1,452,033