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Equity Method Investments - Investment in Limited Partnership Fund (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jul. 15, 2020 | Oct. 31, 2020 | Oct. 26, 2019 | Oct. 31, 2020 | Oct. 26, 2019 | Apr. 30, 2020
Equity Method Investments |  |  |  |  |  |
Equity method investment loss, net of tax |  | $ (9,522) | $ (863) | $ (10,810) | $ (2,210) |
Provision for income taxes |  | 2,491 | 1,108 | 3,698 | 3,241 |
Carrying value of investment |  | 5,335 |  | 5,335 |  | $ 4,442
Limited Partnership Fund |  |  |  |  |  |
Equity Method Investments |  |  |  |  |  |
Capital contributions | $ 1,173 | 3,880 |  |  |  |
Limited Partnership Fund | Equity method investment loss, net of tax |  |  |  |  |  |
Equity Method Investments |  |  |  |  |  |
Equity method investment loss, net of tax |  |  | 0 |  | 0 |
HAPSMobile | Equity method investment loss, net of tax |  |  |  |  |  |
Equity Method Investments |  |  |  |  |  |
Equity method investment loss, net of tax |  | $ 0 | $ 863 | $ 280 | $ 2,210 |

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