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Acquisitions	9 Months Ended
	Jan. 31, 2018
Acquisitions [Abstract]
Acquisitions	6. Acquisitions On September 30, 2016, the Company acquired the net assets of Atypon Systems, Inc. (“Atypon”), a Silicon Valley-based publishing-software company, for approximately $121 million in cash, net of cash acquired. The Company finalized its purchase accounting for Atypon on July 31, 2017. Atypon’s revenue and operating loss included in the Company’s results for the three months ended January 31, 2018 were $8.3 million and $0.8 million, respectively. Atypon’s revenue and operating loss included in the Company’s results for the nine months ended January 31, 2018 were $24.6 million and $1.8 million, respectively. Atypon’s revenue and operating loss included in the Company’s results for the three months ended January 31, 2017 were $8.0 million and $1.5 million, respectively. Atypon’s revenue and operating loss included in the Company’s results for the nine months ended January 31, 2017 were $10.4 million and $2.0 million, respectively.

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- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-URI http://asc.fasb.org/topic&trid=2303972

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- References

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