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Benefit Plans (Tables)
 12 Months Ended
Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of performance shares, activity
The Performance Share performance targets are set forth below.

Trailing 4-Quarter EPS Targets for
September 30, 2018 through March 31, 2025		Restricted Stock Eligible for Vesting
(Percentage of Award)
$16.3540%
$20.4560%
The Performance Option performance target is set forth below.
Trailing 4-Quarter EPS Targets for
September 30, 2018 through March 31, 2025		Options Eligible for Vesting
(Percentage of Award)
$25.30100%
Schedule of weighted-average assumptions This fair value was estimated at grant date using the weighted-average assumptions listed below.
 202320222021
Dividend yield0 %0 %0 %
Expected volatility57.21 %57.82 %57.53 %
Average risk-free interest rate3.64 %1.02 %0.59 %
Expected life5.8 years6.0 years6.3 years
Summary schedule of stock option activity Option activity for the year ended March 31, 2023 was as follows:
 SharesWeighted
Average
Exercise
Price		Weighted
Average
Remaining
Contractual Term		Aggregate
Intrinsic
Value
Options outstanding, beginning of year348,743 $104.38   
Granted16,490 96.07   
Exercised(8,523)84.84   
Forfeited(21,523)119.93   
Expired(20,445)88.88   
Options outstanding, end of period314,742  3$104.41 5.82$589,526 
Options exercisable, end of period114,757 $100.22 5.07$441,097 
Intrinsic value of options exercised The total intrinsic value of options exercised during the years ended March 31, 2023, 2022, and 2021 was as follows:
202320222021
$493,418$17,494,865$9,996,167
Summary of the status and changes restricted stock
A summary of the status of the Company’s restricted stock as of March 31, 2023 and changes during the year ended March 31, 2023, are presented below:
 SharesWeighted Average Fair
Value at Grant Date
Outstanding at March 31, 2022552,502 $102.51 
Granted during the period3,250 129.85 
Vested during the period(65,518)104.13 
Forfeited during the period(29,620)112.70 
Outstanding at March 31, 2023460,614 $101.82 
Share-based compensation included as a component of net income
Total stock-based compensation included as a component of net income during the years ended March 31, 2023, 2022, and 2021 was as follows:
 202320222021
Stock-based compensation related to equity classified units: 
Stock-based compensation related to stock options$2,442,309 $3,473,913 $3,804,674 
Stock-based compensation related to restricted stock6,610,526 14,109,082 15,476,604 
Total stock-based compensation related to equity classified awards$9,052,835 $17,582,995 $19,281,278