Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Employee Benefit Plans (Defined Benefit Plans Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 171.2	$ 135.0
Company's expected contribution to defined benefit pension plans in next fiscal year	$ 6.7
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	33.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	34.00%
Swiss real estate funds
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	28.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	2.00%