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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Balance Type:	debit
Period Type:	duration

Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended		61 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Aug. 31, 2021	Feb. 28, 2021
Stockholders' Equity
Cost of shares of common stock repurchased	$ 113,645	$ 154,920	$ 255,057	$ 443,439
Common Class A [Member]
Stockholders' Equity
Authorized stock repurchase amount						$ 2,000,000	$ 1,000,000
Shares of common stock repurchased	2,427	2,574	4,747	7,227	29,821
Cost of shares of common stock repurchased	$ 113,645	$ 154,920	$ 255,057	$ 443,439	$ 1,565,678