Shares and Preferred Shares Ordinary Shares (Details)	3 Months Ended
	Jun. 30, 2024 $ / shares shares	Jun. 30, 2023 shares	Jun. 30, 2024 EUR (€) shares
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average shares outstanding - basic	98,869,000	98,708,000
Dilutive effect of share equivalents	507,000	531,000
Weighted average shares outstanding and share equivalents - diluted	99,376,000	99,239,000
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
Preferred Stock, Par or Stated Value Per Share | $ / shares	$ 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	665,000	668,000
Euro Member Countries, Euro
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Par Value (Euros) of Deferred Ordinary Shares | €			€ 1.00