Shares and Preferred Shares Ordinary Shares (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2023 $ / shares shares	Dec. 31, 2022 shares	Dec. 31, 2023 $ / shares shares	Dec. 31, 2022 shares	Dec. 31, 2023 EUR (€) shares
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding - basic	98,802,000	99,716,000	98,765,000	99,922,000
Dilutive effect of share equivalents	552,000	450,000	568,000	0
Weighted average shares outstanding and share equivalents - diluted	99,354,000	100,166,000	99,333,000	99,922,000
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Preferred Stock, Shares Authorized					50,000,000
Common Stock, Par or Stated Value Per Share | $ / shares	$ 0.001		$ 0.001
Preferred Stock, Par or Stated Value Per Share | $ / shares	$ 0.001		$ 0.001
Deferred Ordinary Shares					25,000
Employee share option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of share options that are antidilutive	654,000	797,000	649,000	577,000
Euro Member Countries, Euro
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Par Value (Euros) of Deferred Ordinary Shares | €					€ 1.00