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v3.22.2

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Apr. 30, 2022 | Apr. 30, 2021
--- | --- | ---
Deferred tax assets: |  |
Accrued liabilities and reserves | $ 30,932 | $ 29,583
Workers compensation | 9,922 | 9,000
Operating and finance lease obligations | 46,693 | 9,186
Asset retirement obligations | 7,361 | 6,294
Deferred compensation | 3,540 | 4,221
Equity compensation | 9,567 | 9,131
State net operating losses & tax credits | 4,021 | 928
Other | 3,548 | 3,068
Total gross deferred tax assets | 115,584 | 71,411
Less valuation allowance | 250 | 0
Total net deferred tax assets | 115,334 | 71,411
Deferred tax liabilities: |  |
Property and equipment depreciation | (597,740) | (484,065)
Goodwill | (34,869) | (27,047)
Other | (3,197) | (20)
Total gross deferred tax liabilities | (635,806) | (511,132)
Net deferred tax liability | $ (520,472) | $ (439,721)

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