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Summary of Significant Accounting Policies - Content and Software Development Expenses, Capitalized Software Development Costs (Details)

v3.22.2.2
Summary of Significant Accounting Policies - Content and Software Development Expenses, Capitalized Software Development Costs (Details) - USD ($)
$ in Millions
4 Months Ended 5 Months Ended 7 Months Ended 8 Months Ended 12 Months Ended
Jun. 11, 2021
Jan. 31, 2021
Aug. 27, 2020
Jan. 31, 2022
Jan. 31, 2022
Jan. 31, 2020
Finite-Lived Intangible Assets [Line Items]            
Proprietary content development expenses $ 7.8 $ 11.2 $ 12.2 $ 15.5   $ 25.3
Software development costs capitalized during period 1.7 1.9 3.0 2.9   4.8
Amortization recognized during period $ 0.2 $ 0.1 $ 2.7 $ 0.2   $ 3.9
Developed software/ courseware            
Finite-Lived Intangible Assets [Line Items]            
Estimated useful life         5 years