Schedule II Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts Receivable [Member] - USD ($) $ in Thousands		12 Months Ended
		Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Movement in Valuation Allowances and Reserves
Balance at beginning of period		$ 83,772	$ 33,656	$ 41,101
Charged to cost and expenses		9,903	19,788	4,680
Deductions		(24,247)	(28,531)	(16,596)
Other	[1]	3,842	58,859	4,471
Balance at end of period		$ 73,270	$ 83,772	$ 33,656

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