Goodwill And Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) $ in Thousands	12 Months Ended
	Jan. 31, 2016 USD ($)
Goodwill [Roll Forward]
Balance as of February 1, 2015	$ 198,565
Goodwill acquired during the year	14,117
Foreign currency translation adjustment	(8,568)
Balance as of January 31, 2016	204,114
Americas
Goodwill [Roll Forward]
Balance as of February 1, 2015	5,442
Goodwill acquired during the year	14,117
Foreign currency translation adjustment	0
Balance as of January 31, 2016	19,559
Europe
Goodwill [Roll Forward]
Balance as of February 1, 2015	193,123
Goodwill acquired during the year	0
Foreign currency translation adjustment	(8,568)
Balance as of January 31, 2016	$ 184,555