Fair Value Of Financial Instruments (Tables)

12 Months Ended

Jan. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table summarizes the valuation of the Company's assets and liabilities that are measured at fair value on a recurring basis:

	January 31, 2013					January 31, 2012
	Fair value measurement category					Fair value measurement category
	Level 1	Level 2		Level 3		Level 1	Level 2		Level 3
	(in thousands)
Assets
Foreign currency forward contracts		$	19,835				$	6,243
Liabilities
Foreign currency forward contracts		$	19,628				$	11,226
Acquisition-related contingent consideration				$	18,147				$	15,506