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Goodwill and Intangible Assets, Goodwill (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jul. 31, 2022 | Apr. 30, 2022
Activity in Goodwill by Segment [Roll Forward] |  |  |
Balance, beginning of period | [1] | $ 1,302,142 |
Foreign translation adjustment |  | (12,900) |
Balance, end of period |  | 1,289,242 |
Research [Member] |  |  |
Activity in Goodwill by Segment [Roll Forward] |  |  |
Balance, beginning of period | [1] | 610,416 |
Foreign translation adjustment | [1] | (9,530) |
Balance, end of period | [1] | 600,886 |
Academic & Professional Learning [Member] |  |  |
Activity in Goodwill by Segment [Roll Forward] |  |  |
Balance, beginning of period | [1] | 498,136 |
Foreign translation adjustment |  | (3,108) |
Balance, end of period |  | 495,028 |
Education Services [Member] |  |  |
Activity in Goodwill by Segment [Roll Forward] |  |  |
Balance, beginning of period | [2] | 193,590 |
Foreign translation adjustment | [2] | (262) |
Balance, end of period | [2] | $ 193,328 |
Cumulative pretax noncash goodwill impairment |  |  | $ 110,000
[1] | The Research segment was previously referred to as Research Publishing & Platforms.
[2] | The Education Services goodwill balance as of April 30, 2022 includes a cumulative pretax noncash goodwill impairment of $110.0 million.

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