Income Taxes - Components of Income Tax (Benefit) Expense From Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Currently due:
U.S. federal	$ (514)	$ 6,284	$ 7,676
State and local	(178)	1,853	2,566
Foreign	13,847	20,349	13,279
Total current income tax expense	13,155	28,486	23,521
Deferred:
U.S. federal	(19,410)	(16,384)	(1,686)
State and local	(1,398)	(3,742)	(716)
Foreign	(623)	1,261	434
Total deferred income tax expense	(21,431)	(18,865)	(1,968)
Total	$ (8,276)	$ 9,621	$ 21,553