Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Operating Cash Flows:
Net income (loss)	$ 27,530	$ (2,353)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization of property, plant, and equipment	8,331	7,750
Amortization of intangible assets and debt costs	5,482	6,651
Dividends received from unconsolidated entities, net of equity in income (loss)	350	(2)
Loss on debt extinguishment	0	(3,518)
Write-off of debt discount and debt issuance costs	0	8,010
Stock-based compensation	5,147	5,680
Deferred income taxes	837	(563)
Changes in other long-term liabilities	348	(1,506)
Other	18	28
Changes in operating assets and liabilities, net of effect of acquired businesses:
Trade accounts receivable, net	90	36,157
Prepaid expenses and other	(2,047)	(3,259)
Term receivables, long-term	7,710	(6,930)
Accounts payable and accrued liabilities	(60,066)	(61,698)
Income taxes payable	(1,996)	(4,016)
Deferred revenue	14,411	3,271
Net cash provided by (used in) operating activities	6,145	(9,262)
Investing Cash Flows:
Purchases of property, plant, and equipment	(11,604)	(6,345)
Acquisitions of businesses and equity interests, net of cash acquired	(453)	(2,036)
Net cash used in investing activities	(12,057)	(8,381)
Financing Cash Flows:
Proceeds from issuance of common stock	3,567	7,368
Repurchase of common stock	0	(24,997)
Tax benefit from share options exercised	139	0
Net decrease in short-term borrowings	(6,069)	(6,624)
Debt and equity issuance costs	0	(8,575)
Proceeds from notes payable and revolving credit facility	0	253,000
Repayments of notes payable and revolving credit facility	(1,871)	(219,919)
Net cash provided by (used in) financing activities	(4,234)	253
Effect of exchange rate changes on cash and cash equivalents	(1,542)	758
Net change in cash and cash equivalents	(11,688)	(16,632)
Cash and cash equivalents at the beginning of the period	146,499	133,113
Cash and cash equivalents at the end of the period	$ 134,811	$ 116,481