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Employee Benefit Plans (Defined Benefit Plans Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 118.7	$ 108.9
Company's expected contribution to defined benefit pension plans in next fiscal year	$ 5.5
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%

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

+ References

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-Publisher FASB
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- Definition

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.

+ References

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-Publisher FASB
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