Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Operating Cash Flows:
Net income	$ 23,328	$ 45,085
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, plant, and equipment	17,218	16,157
Amortization of intangible assets and debt costs	8,910	10,855
Stock-based compensation	13,843	11,453
Deferred income taxes	4,590	(1,444)
Changes in other long-term liabilities	(2,377)	(874)
Dividends received from unconsolidated entities, net of equity in income	1,360	1,029
Other	(12)	29
Changes in operating assets and liabilities, net of effect of acquired businesses:
Trade accounts receivable, net	44,408	8,954
Prepaid expenses and other	(11,833)	(1,242)
Term receivables, long-term	33,037	1,021
Accounts payable and accrued liabilities	(58,645)	(61,699)
Income taxes payable	(8,701)	(3,893)
Deferred revenue	(29,967)	8,956
Net cash provided by operating activities	35,159	34,387
Investing Cash Flows:
Proceeds from sale of short-term investments	3,112	0
Purchases of short-term investments	(7,820)	0
Purchases of property, plant, and equipment	(13,821)	(22,183)
Acquisitions of businesses and equity interests, net of cash acquired	(2,928)	(1,803)
Net cash used in investing activities	(21,457)	(23,986)
Financing Cash Flows:
Proceeds from issuance of common stock	28,619	18,805
Repurchase of common stock	(39,995)	(20,000)
Tax benefit from share options exercised	0	139
Dividends paid	(10,143)	0
Net decrease in short-term borrowings	(1,722)	(5,145)
Repayments of other borrowings	(2,712)	(1,871)
Net cash used in financing activities	(25,953)	(8,072)
Effect of exchange rate changes on cash and cash equivalents	(1,968)	(2,467)
Net change in cash and cash equivalents	(14,219)	(138)
Cash and cash equivalents at the beginning of the period	223,783	146,499
Cash and cash equivalents at the end of the period	$ 209,564	$ 146,361