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Leases - Assets and Liabilities of Lessee (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2022 | Apr. 30, 2021
Leases [Abstract] |  |
Weighted-average remaining lease-term - finance lease | 19 years 3 months 18 days | 10 years 10 months 24 days
Weighted-average remaining lease-term - operating lease | 20 years 3 months 18 days | 20 years 4 months 24 days
Weighted-average discount rate - finance lease | 3.97% | 5.38%
Weighted-average discount rate - operating lease | 3.98% | 4.42%
Right-of-use assets obtained in exchange for new finance lease liabilities (in thousands) | $ 52,525 | $ 0
Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands) | $ 87,723 | $ 1,109

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- Definition Weighted average remaining lease term for finance 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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