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v3.20.1

Segment Information, Other Significant Reconciling Items by Segment (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2018
Segment Information [Abstract] |  |  |
Expenditures for long lived assets | $ (115,201) | $ (101,593) | $ (150,728)
Depreciation and amortization | 175,127 | 161,155 | 153,989
Operating Segments [Member] |  |  |
Segment Information [Abstract] |  |  |
Depreciation and amortization | 163,433 | 147,132 | 140,191
Operating Segments [Member] | Research Publishing & Platforms [Member] |  |  |
Segment Information [Abstract] |  |  |
Expenditures for long lived assets | (16,329) | (12,928) | (24,961)
Depreciation and amortization | 69,495 | 60,889 | 54,805
Operating Segments [Member] | Academic & Professional Learning [Member] |  |  |
Segment Information [Abstract] |  |  |
Expenditures for long lived assets | (38,229) | (32,337) | (43,625)
Depreciation and amortization | 69,807 | 68,126 | 72,274
Operating Segments [Member] | Education Services [Member] |  |  |
Segment Information [Abstract] |  |  |
Expenditures for long lived assets | (613) | (3,160) | (5,991)
Depreciation and amortization | 24,131 | 18,117 | 13,112
Corporate [Member] |  |  |
Segment Information [Abstract] |  |  |
Expenditures for long lived assets | (60,030) | (53,168) | (76,151)
Depreciation and amortization | $ 11,694 | $ 14,023 | $ 13,798

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