INCOME TAXES - Components of Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Current
Federal	$ 47,585	$ 46,989	$ 36,828
State and city	5,910	5,978	5,396
Foreign	7,768	5,688	7,040
Current Income Tax Expense (Benefit), Total	61,263	58,655	49,264
Deferred
Federal	3,458	1,422	(3,328)
State and city	535	(67)	189
Foreign	(456)	(560)	(299)
Deferred Income Tax Expense (Benefit), Total	3,537	795	(3,438)
Income tax expense	64,800	59,450	45,826
Income before income taxes
United States	149,578	133,709	104,435
Non-United States	29,555	34,732	17,793
Income before income taxes	$ 179,133	$ 168,441	$ 122,228