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Income Taxes (Details) - USD ($)
3 Months Ended 6 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2022
Jul. 31, 2021
Income Tax Disclosure [Abstract]        
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability $ 4.3 $ 1.8 $ 6,200,000 $ 4,000,000
Discontinued Operation, Tax Effect of Discontinued Operation   $ 5,444,000   $ 7,639,000