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Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Common Stock, Shares, Outstanding | 47,377,125 |  | 47,349,778 |
Stockholders' Equity Attributable to Parent | $ 2,965,439 | $ 1,715,371 | $ 3,018,449 | $ 1,702,685
Held In Rabbi Trust At Cost [Member] |  |  |  |
Stockholders' Equity Attributable to Parent | $ (3,179) | $ (3,080) | (3,146) | (3,066)
Retained Earnings |  |  |  |
Cash dividends declared per common share (in dollars per share) | $ 0.51 | $ 0.48 |  |
Stockholders' Equity Attributable to Parent | $ 795,651 | $ 741,883 | 766,716 | 716,024
Deferred Compensation, Share-based Payments [Member] |  |  |  |
Stockholders' Equity Attributable to Parent | 3,179 | 3,080 | 3,146 | 3,066
AOCI Attributable to Parent [Member] |  |  |  |
Stockholders' Equity Attributable to Parent | (78,202) | 27,157 | 2,183 | 40,695
Common Stock [Member] |  |  |  |
Stockholders' Equity Attributable to Parent | 472 | 329 | 472 | 328
Additional Paid-in Capital [Member] |  |  |  |
Stockholders' Equity Attributable to Parent | $ 2,247,518 | $ 946,002 | $ 2,249,078 | $ 945,638
Common Class A [Member] |  |  |  |
Common Stock, Shares, Outstanding | 47,377,125 | 33,024,882 | 47,349,778 | 32,965,692

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