Basis of Presentation - Additional Information (Details)	Jan. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Accounting Standards Update [Extensible Enumeration]	us-gaap:AccountingStandardsUpdate201912Member
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true