Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Cash flows from operating activities:
Net cash used in operating activities	$ (14,570)	$ (51,804)
Cash flows from investing activities:
Proceeds from sales and maturities of investments	394	412
Acquisition of businesses, including adjustments, net of cash acquired	(660)	(11,958)
Purchase of property and equipment	(5,864)	(4,606)
Capitalization of software development costs	(1,127)	(1,076)
Net change in restricted cash and bank time deposits	(14)	949
Settlement of derivative financial instruments not designated as hedges	(445)	(887)
Other, net	265	201
Net cash used in by investing activities	(7,451)	(16,965)
Cash flows from financing activities:
Debt issuance costs and other debt-related costs	0	(13,952)
Proceeds from borrowings, net of original issuance discount	0	597,000
Repayment of bank loans, long-term debt and other financing obligations	(1,767)	(589,362)
Repurchase of common stock	(1,206)	(1,425)
Net payments from repurchase of common stock by a subsidiary	(369)	(502)
Proceeds from exercises of stock options	1,043	5,122
Other, net	(1,424)	(1,804)
Net cash used in financing activities	(3,723)	(4,923)
Effects of exchange rates on cash and cash equivalents	1,130	7,603
Net decrease in cash and cash equivalents	(24,614)	(66,089)
Cash and cash equivalents, beginning of period	515,637	581,390
Cash and cash equivalents, end of period	491,023	515,301
Non-cash investing and financing transactions:
Accrued but unpaid purchases of property and equipment	1,028	1,974
Inventory transfers to (from) property and equipment	632	(2,895)
Accrued but unpaid debt issuance and other debt-related costs	0	999
Liabilities for contingent consideration recorded for business combination	0	904
Leasehold improvements funded by lease incentive	$ 329	$ 0