Customer Accounts Receivable - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020	Jan. 31, 2020
Receivables [Abstract]
Customer accounts receivable - current	$ 666,294
Allowance for credit losses for customer accounts receivable - current	(176,453)
Customer accounts receivable, net of allowances	489,841	$ 624,042	$ 673,742
Customer accounts receivable - non current	585,322
Allowance for credit losses for customer accounts receivable - non current	(140,970)
Long-term portion of customer accounts receivable, net of allowances	444,352	$ 614,799	663,761
Total customer accounts receivable, net	$ 934,193		$ 1,337,503