Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Operating Cash Flows:
Net income (loss)	$ (419)	$ 27,530
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization of property, plant, and equipment	8,790	8,331
Amortization of intangible assets and debt costs	4,554	5,482
Stock-based compensation	6,566	5,147
Deferred income taxes	5,104	837
Changes in other long-term liabilities	(1,890)	348
Dividends received from unconsolidated entities, net of equity in income (loss)	1,052	350
Other	(22)	18
Changes in operating assets and liabilities, net of effect of acquired businesses:
Trade accounts receivable, net	42,176	90
Prepaid expenses and other	(14,813)	(2,047)
Term receivables, long-term	20,266	7,710
Accounts payable and accrued liabilities	(54,472)	(60,066)
Income taxes payable	(4,792)	(1,996)
Deferred revenue	27	14,411
Net cash provided by operating activities	12,127	6,145
Investing Cash Flows:
Purchases of short-term investments	(7,820)	0
Purchases of property, plant, and equipment	(4,410)	(11,604)
Acquisitions of businesses and equity interests, net of cash acquired	(2,928)	(453)
Net cash used in investing activities	(15,158)	(12,057)
Financing Cash Flows:
Proceeds from issuance of common stock	9,609	3,567
Repurchase of common stock	(19,995)	0
Tax benefit from share options exercised	0	139
Payments of dividends	(5,064)	0
Net decrease in short-term borrowings	(4,827)	(6,069)
Repayments of Other Long-term Debt	(1,131)	(1,871)
Net cash used in financing activities	(21,408)	(4,234)
Effect of exchange rate changes on cash and cash equivalents	(964)	(1,542)
Net change in cash and cash equivalents	(25,403)	(11,688)
Cash and cash equivalents at the beginning of the period	223,783	146,499
Cash and cash equivalents at the end of the period	$ 198,380	$ 134,811