Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Indebtedness Schedule of Maturities of Long-term Debt (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jul. 31, 2020	Oct. 31, 2020	Oct. 31, 2019	Jan. 31, 2020
Debt Instrument [Line Items]
Remaining 2021				$ 15,600
2022				62,500
2023				70,300
2024				101,600
2025				768,800
Total principal payments		$ 1,018,800		$ 1,018,800
Principal payments on long-term debt		$ 223,438	$ 0
Follow on equity offering
Debt Instrument [Line Items]
Principal payments on long-term debt	$ 200,000