Inventories (Tables)

3 Months Ended

Apr. 30, 2015

Inventory Disclosure [Abstract]

Schedule of inventories

	April 30, 2015		April 30, 2014		January 31, 2015
	(In thousands)
Finished goods	$	363,458	$	310,907	$	417,332
Raw materials and work-in-process		7,766		11,752		8,848
	$	371,224	$	322,659	$	426,180