Earnings Per Share	3 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
2. Earnings Per Share	We calculate earnings per share using the two-class method in accordance with Accounting Standards Codification (“ASC“) Topic 260, Earnings Per Share . The two-class method allocates the undistributed earnings available to common stockholders to the Company’s outstanding common stock, $ 0.25 par value (the “Voting Common Stock”) and the Series N Non-Voting Common Stock, $ 0.001 par value (the “Non-Voting Common Stock”) based on each share’s percentage of total weighted average shares outstanding. The Voting Common Stock and Non-Voting Common Stock are allocated 10 % and 90 %, respectively, of our undistributed earnings available to common stockholders. This represents earnings available to common stockholders less the dividends declared for both the Voting Common Stock and Non-Voting Common Stock. Our undistributed earnings per share is calculated by taking the undistributed earnings available to common stockholders and dividing this number by the weighted average shares outstanding for the respective stock. If there was a dividend declared for that period, the dividend per share is added to the undistributed earnings per share to calculate the basic and diluted earnings per share. The process is used for both Voting Common Stock and Non-Voting Common Stock. The calculation of basic and diluted earnings per share for the quarters ended June 30, 2023 and 2022 for our Voting Common Stock and Non-Voting Common Stock were as follows:     For the Quarters Ended     June 30,     2023 2022     (Unaudited)     (In thousands, except share and per share amounts)           Weighted average shares outstanding of Voting Common Stock   19,607,788   19,607,788 Total weighted average shares outstanding for Voting Common Stock and Non-Voting Common Stock   196,077,880   196,077,880 Percent of weighted average shares outstanding of Voting Common Stock   10%   10%           Net earnings available to common stockholders $ 256,838 $ 338,345 Voting Common Stock dividends declared   –   (9,804) Non-Voting Common Stock dividends declared   (7,059)   – Undistributed earnings available to common stockholders $ 249,779 $ 328,541 Undistributed earnings available to common stockholders allocated to Voting Common Stock $ 24,978 $ 32,854           Undistributed earnings per share of Voting Common Stock $ 1.27 $ 1.68 Dividends declared per share of Voting Common Stock $ – $ 0.50 Basic and diluted earnings per share of Voting Common Stock $ 1.27 $ 2.18                     Weighted average shares outstanding of Non-Voting Common Stock   176,470,092   176,470,092 Total weighted average shares outstanding for Voting Common Stock and Non-Voting Common Stock   196,077,880   196,077,880 Percent of weighted average shares outstanding of Non-Voting Common Stock   90%   90%           Net earnings available to common stockholders $ 256,838 $ 338,345 Voting Common Stock dividends declared   –   (9,804) Non-Voting Common Stock dividends declared   (7,059)   – Undistributed earnings available to common stockholders $ 249,779 $ 328,541 Undistributed earnings available to common stockholders allocated to Non-Voting Common Stock $ 224,801 $ 295,687           Undistributed earnings per share of Non-Voting Common Stock $ 1.27 $ 1.68 Dividends declared per share of Non-Voting Common Stock $ 0.04 $ – Basic and diluted earnings per share of Non-Voting Common Stock $ 1.31 $ 1.68