Inventories (Tables)

9 Months Ended

Oct. 31, 2015

Inventory Disclosure [Abstract]

Schedule of inventories

	October 31, 2015		October 31, 2014		January 31, 2015
	(In thousands)
Finished goods	$	507,602	$	429,531	$	417,332
Raw materials and work-in-process		2,772		6,836		8,848
	$	510,374	$	436,367	$	426,180