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Employee Benefit Plans (Details) - Schedule of accumulated benefit obligation in excess of plan assets - Pension Plans [Member] - USD ($) $ in Millions	May 31, 2019	May 31, 2018	May 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 31.8	$ 32.4
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligations	0.0	0.0	$ 127.8
Accumulated benefit obligations		0.0
Fair value of plan assets	0.0	1.6	132.5
U.K. [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligations	40.9	40.0	41.7
Projected benefit obligations	40.9	40.0
Accumulated benefit obligations	40.2	39.4
Fair value of plan assets	31.8	30.8	$ 29.2
Fair value of plan assets	$ 31.8	$ 30.8

X

- Definition

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

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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