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Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) $ in Thousands	3 Months Ended
	Jul. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 14,909
Financing cash flows from finance leases	432
ROU assets obtained in exchange for lease obligations:
Operating leases	935
Finance leases	$ 513

X

- Definition

Cash paid for amounts included in measurement of lease liabilities.

+ References

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- Definition

Right-of-use assets obtained in exchange for lease obligations.

+ References

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- Definition

Amount of cash outflow for principal payment on finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (a)
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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
-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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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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