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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent	38.70%	2124.60%
Income Tax Expense (Benefit) (in Dollars)	$ 5,313	$ 3,548
CARES Act Net Operating Loss Carryback [Member]
Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit) (in Dollars)	$ (1,400)

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to depreciation.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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