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Stock-Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Shares    
Outstanding, beginning of period (in shares) 1,100,900 1,114,900
Granted (in shares) 197,600 234,200
Exercised (in shares) (200,200) (191,300)
Forfeited (in shares) (10,300) (13,700)
Expired (in shares) (800) (8,500)
Outstanding, end of period (in shares) 1,087,200 1,135,600
Exercisable, end of period (in shares) 670,500 656,000.0
Weighted Average Exercise Price    
Outstanding, beginning of period, weighted-average exercise price (in USD per share) $ 40.62 $ 37.92
Granted, weighted-average exercise price (in USD per share) 54.48 44.74
Exercised, weighted-average exercise price (in USD per share) 35.82 29.90
Forfeited, weighted-average exercise price (in USD per share) 49.53 37.83
Expired, weighted-average exercise price (in USD per share) 44.33 56.63
Outstanding, end of period, weighted-average exercise price (in USD per share) 43.94 40.54
Exercisable, end of period, weighted-average exercise price (in USD per share) $ 41.18 $ 40.65
Options, Additional Disclosures:    
Outstanding, end of period, weighted-average remaining contractual term 6 years 8 months 12 days 6 years 9 months 18 days
Exercisable, end of period, weighted-average remaining contractual term 5 years 4 months 24 days 5 years 6 months
Outstanding, end of period, aggregate intrinsic value $ 20,289 $ 22,833
Exercisable, end of period, aggregate intrinsic value $ 14,360 $ 13,122