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Summary Of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2019
Summary Of Significant Accounting Policies [Line Items] |  |  |
Book overdrafts included in accounts payable | $ 2,900 | $ 15,200 |
Marketing and advertising | 262,000 | 255,100 | $ 269,800
Defined contribution plan, cost | 26,600 | 18,800 | 19,300
Expenses related to severance benefits | 8,400 | 2,500 | $ 5,000
Operating Lease, Right-of-Use Asset | 437,246 | $ 494,788 |
Operating Lease, Liability | $ 449,019 |  |
Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Term of lease | 3 years |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Term of lease | 5 years |  |
Buildings | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 15 years |  |
Buildings | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 40 years |  |
Leasehold improvements | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 8 years |  |
Purchased software | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 3 years |  |
Purchased software | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 5 years |  |
Computers and other equipment | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 2 years |  |
Computers and other equipment | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful life | 5 years |  |

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- Definition Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1243-112600 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Term of lessee's 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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