Schedule II Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts Receivable [Member] - USD ($) $ in Thousands		12 Months Ended
		Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Movement in Valuation Allowances and Reserves
Balance at beginning of period		$ 73,270	$ 83,772	$ 33,656
Charged to cost and expenses		21,081	9,903	19,788
Deductions		(19,252)	(24,247)	(28,531)
Other	[1]	4,341	3,842	58,859
Balance at end of period		$ 79,440	$ 73,270	$ 83,772

[1] “Other” primarily includes recoveries, acquisitions and dispositions and the effect of fluctuations in foreign currencies.