Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jul. 31, 2011	Jul. 31, 2010
Operating Cash Flows:
Net income (loss)	$ 1,981	$ (37,272)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization of property, plant, and equipment	15,673	15,570
Amortization of intangible assets and debt costs	12,507	13,875
Equity in losses of unconsolidated entities, net of dividends received	1,010	125
Loss on debt extinguishment	3,518
Write-off of debt discount and debt issuance costs	8,010	132
Stock-based compensation	11,509	11,684
Deferred income taxes	(1,136)	1,600
Changes in other long-term liabilities	(1,984)	296
Other	(1)	96
Changes in operating assets and liabilities, net of effect of acquired businesses:
Trade accounts receivable, net	78,079	21,879
Prepaid expenses and other	(2,372)	(396)
Term receivables, long-term	(15,382)	32,990
Accounts payable and accrued liabilities	(75,704)	(40,755)
Income taxes payable	(9,064)	(5,161)
Deferred revenue	(1,790)	132
Net cash provided by operating activities	24,854	14,795
Investing Cash Flows:
Increase in restricted cash		(999)
Purchases of property, plant, and equipment	(16,624)	(18,488)
Acquisitions of businesses and equity interests, net of cash acquired	(2,036)	(9,899)
Net cash used in investing activities	(18,660)	(29,386)
Financing Cash Flows:
Proceeds from issuance of common stock	22,791	14,394
Repurchase of common stock	(59,996)
Net decrease in short-term borrowings	(4,390)	(8,888)
Debt and equity issuance costs	(8,895)	(685)
Proceeds from notes payable and revolving credit facility	253,000	50,000
Repayments of notes payable and revolving credit facility	(219,919)	(50,500)
Net cash provided by (used in) financing activities	(17,409)	4,321
Effect of exchange rate changes on cash and cash equivalents	1,571	246
Net change in cash and cash equivalents	(9,644)	(10,024)
Cash and cash equivalents at the beginning of the period	133,113	99,340
Cash and cash equivalents at the end of the period	$ 123,469	$ 89,316