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Revenue Recognition and Contracts with Customers (Tables) | 9 Months Ended
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Jan. 31, 2020
Revenue From Contract With Customer [Abstract] |
Schedule of Impact of Adoption of ASU 2014-09 on Revenue Recognized | The following table outlines the impact of the adoption of ASU 2014-09 on revenue recognized during the nine-month periods ended January 31, 2020 and 2019 (in thousands):
|  | 2020 |  |  | 2019 |
Outstanding performance obligations at beginning of period |  | $ | 12,213 |  |  | $ | 23,305 |
Revenue recognized |  |  | (14,571 | ) |  |  | (13,998 | )
Revenue deferred |  |  | 5,472 |  |  |  | 4,314 |
Outstanding performance obligations at July 31 |  |  | 3,114 |  |  |  | 13,621 |
Revenue recognized |  |  | (7,716 | ) |  |  | (12,337 | )
Revenue deferred |  |  | 10,104 |  |  |  | 7,667 |
Outstanding performance obligations as of October 31 |  |  | 5,502 |  |  |  | 8,951 |
Revenue recognized |  |  | (9,492 | ) |  |  | (10,229 | )
Revenue deferred |  |  | 11,093 |  |  |  | 9,064 |
Outstanding performance obligations as of January 31 |  | $ | 7,103 |  |  | $ | 7,786 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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