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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2019 | Jan. 31, 2018 | Jul. 31, 2017 | Jan. 31, 2019 | Jan. 31, 2018
Statement of Comprehensive Income [Abstract] |  |  |  |  |
Net income | $ 18,409 | $ 1,996 | $ 22,281 | $ 61,664 | $ 44,032
Other comprehensive income, net of tax: |  |  |  |  |
Change in pension benefits, net of deferred taxes of $(105) and $(138), and $(315) and $(450) for the three and nine months ended January 31, 2019 and 2018, respectively | 307 |  | $ 262 | 921 | 750
Total Comprehensive Income | $ 18,716 | $ 2,258 |  | $ 62,585 | $ 44,782

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