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v3.19.2

Restructuring and Related Charges, Pre-tax Restructuring Charges (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Apr. 30, 2019 | Apr. 30, 2018 | Apr. 30, 2017
Restructuring and Related Charges [Abstract] |  |  |
Restructuring charge (in dollars per share) | $ 3.1 | $ 28.6 | $ 13.4
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | $ 3,118 | $ 28,566 | $ 13,355
Restructuring and Reinvestment Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 3,118 | 28,566 | 13,355
Restructuring and related charges incurred to date | 169,628 |  |
Restructuring and Reinvestment Program [Member] | Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 1,456 | 27,213 | 8,386
Restructuring and related charges incurred to date | 116,259 |  |
Restructuring and Reinvestment Program [Member] | Consulting and Contract Termination Costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 526 | 1,815 | 148
Restructuring and related charges incurred to date | 21,155 |  |
Restructuring and Reinvestment Program [Member] | Other Activities [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 1,136 | (462) | 4,821
Restructuring and related charges incurred to date | 32,214 |  |
Research [Member] | Restructuring and Reinvestment Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 1,131 | 5,257 | 1,949
Restructuring and related charges incurred to date | 26,544 |  |
Publishing [Member] | Restructuring and Reinvestment Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 650 | 6,443 | 1,596
Restructuring and related charges incurred to date | 39,581 |  |
Solutions [Member] | Restructuring and Reinvestment Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 878 | 3,695 | 1,787
Restructuring and related charges incurred to date | 7,125 |  |
Corporate Expenses [Member] | Restructuring and Reinvestment Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related (credits) charges | 459 | $ 13,171 | $ 8,023
Restructuring and related charges incurred to date | $ 96,378 |  |

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- Definition The per share amount of pre-tax restructuring charge recorded during the period. + References No definition available. + Details
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- Definition Restructuring charges for research and professional development, net of related reversal of severance provisions previously recorded by the Company. + References No definition available. + Details
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- Definition Amount of costs incurred to date for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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