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Shareholders' Equity (Narrative) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	May 25, 2023
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, additional authorized amount						$ 100,000
Common stock surrendered as payment	$ 88,319	$ 198,819	$ 267,198	$ 345,921
Value of common shares remaining to be repurchased	$ 294,694				$ 294,694
Repurchases in Accordance with Stock Award Agreements [Member]
Equity, Class of Treasury Stock [Line Items]
Acquisition of treasury stock (shares), total					40
Common stock surrendered as payment					$ 67,474

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