Derivative Instruments - Offsetting Assets (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	$ 24,166	$ 3,221
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets	24,166
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(24,166)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty A
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	1,879
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets	1,879
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(1,879)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty B
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	7,714
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets	7,714
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(7,714)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty C
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	4,961
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets	4,961
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(4,961)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty D
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	8,465
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets	8,465
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(8,465)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty E
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	1,147
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets	1,147
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(1,147)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	$ 0

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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