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Shareholders' Equity (Narrative) (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2022 | Sep. 13, 2022
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, additional authorized amount |  |  |  |  |  |  |  | $ 200,000
Common stock surrendered as payment | $ 107,334 | $ 267,198 | $ 345,921 | $ 103,340 | $ 159,347 | $ 106,036 |  |
Value of common shares remaining to be repurchased | $ 412,806 |  |  |  |  |  | $ 412,806 |
Repurchases in Accordance with Stock Award Agreements [Member] |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Acquisition of treasury stock (shares), total |  |  |  |  |  |  | 60 |
Common stock surrendered as payment |  |  |  |  |  |  | $ 92,374 |

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