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Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Debt Disclosure [Abstract]
Contractual interest expense	$ 3,140	$ 4,245	$ 9,462	$ 11,675
Interest cost related to amortization of debt discount	101	11,374	303	38,993
Interest cost related to amortization of debt issuance costs	896	724	2,688	2,473
Total interest expense	$ 4,137	$ 16,343	$ 12,453	$ 53,141

X

- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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