Allowance for Doubtful Accounts (Accounts Receivable and Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021	Oct. 31, 2020	Jan. 31, 2020
Segment Reporting Information [Line Items]
Accounts receivable, gross	$ 861,831	$ 510,157	$ 736,449
Allowance for doubtful accounts	(17,449)	(17,459)	(15,474)	$ (710)
Accounts receivable, net	844,382	492,698	720,975
Wholesale
Segment Reporting Information [Line Items]
Accounts receivable, gross	860,245	509,010	734,481
Allowance for doubtful accounts	(17,412)	(17,429)	(15,437)	(628)
Accounts receivable, net	842,833	491,581	719,044
Retail [Member]
Segment Reporting Information [Line Items]
Accounts receivable, gross	1,586	1,147	1,968
Allowance for doubtful accounts	(37)	(30)	(37)	$ (82)
Accounts receivable, net	$ 1,549	$ 1,117	$ 1,931