Goodwill And Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) $ in Thousands	12 Months Ended
	Jan. 31, 2017 USD ($)
Goodwill
Balance as of February 1, 2016	$ 204,114
Goodwill acquired during the year	2,671
Foreign currency translation adjustment	(7,764)
Balance as of January 31, 2017	199,021
Americas
Goodwill
Balance as of February 1, 2016	19,559
Goodwill acquired during the year	0
Foreign currency translation adjustment	0
Balance as of January 31, 2017	19,559
Europe
Goodwill
Balance as of February 1, 2016	184,555
Goodwill acquired during the year	2,671
Foreign currency translation adjustment	(7,764)
Balance as of January 31, 2017	$ 179,462