Commitments and Contingencies (Details) $ in Thousands				1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 30, 2020 officer	Jun. 11, 2020 officer	Apr. 08, 2020 officer	May 31, 2020 USD ($)	Jan. 31, 2021 USD ($)	Jan. 31, 2021 USD ($)	Jan. 31, 2020 USD ($)
Other Commitments [Line Items]
Purchase obligation					$ 498,600	$ 498,600
Payments for royalties				$ 9,800	9,800	10,600
Payments for legal settlements						9,800
Sales and other tax liabilities					85,600	85,600	$ 37,700
Sales and other tax liabilities					27,500	27,500	3,700
Sales and other tax liabilities					$ 58,133	$ 58,133	$ 33,957
Violation Of Securities Act Section 10(b), 20(a), and Rule 10b-5
Other Commitments [Line Items]
Loss contingency, number of defendants | officer	8	9	2