Leases (Other Information Related to Operating Leases) (Details) $ in Thousands	12 Months Ended
Apr. 30, 2020 USD ($)
Leases [Abstract]
Cash paid for operating lease costs	$ 223,080
Operating lease right of use assets obtained in exchange for operating lease liabilities	$ 345,079
Weighted-average remaining operating lease term (years)	3 years
Weighted-average operating lease discount rate	3.30%

No definition available.

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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-Publisher FASB
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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