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		46 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Feb. 28, 2021	Jun. 30, 2017
Stockholders' Equity
Cost of shares of common stock repurchased	$ 288,519	$ 4,121
Common Stock
Stockholders' Equity
Authorized stock repurchase amount				$ 1,000,000	$ 500,000
Shares of common stock repurchased	4,653	238	14,359
Cost of shares of common stock repurchased	$ 288,519	$ 4,121	$ 640,946