Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Goodwill And Intangible Assets
Goodwill Impairment	$ 47,434	$ 47,434	$ 0	$ 0
Capitalized intangible assets		21,600	1,000,000	14,600
Capitalized Computer Software, Amortization		33,400	32,000	17,100
Amortization expense		91,200	89,100	$ 21,100
TS
Goodwill And Intangible Assets
Finite-lived Intangible Assets Acquired			$ 1,000,000
Asia Pacific [Member]
Goodwill And Intangible Assets
Goodwill Impairment	$ 47,434	$ 47,434