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

Aggregate dividends declared during the period for each share of common stock outstanding.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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