Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Operating Cash Flows:
Net income	$ 94,176	$ 145,177	$ 153,558
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant, and equipment	36,449	34,336	34,563
Amortization of intangible assets, debt costs and other	24,973	23,710	17,891
Stock-based compensation	40,497	35,807	29,350
Deferred income taxes	5,055	9,265	8,550
Changes in other long-term liabilities	(804)	876	(3,708)
Equity in income of unconsolidated entities, net of dividends received	(455)	507	1,290
Other	(696)	85	(11)
Changes in operating assets and liabilities, net of effect of acquired businesses:
Trade accounts receivable, net	49,751	(90,404)	(43,811)
Prepaid expenses and other	(13,558)	(16,348)	(17,774)
Term receivables, long-term	31,672	(34,808)	(21,285)
Accounts payable and accrued liabilities	(39,956)	2,481	4,473
Income taxes receivable and payable	3,767	1,442	(10,487)
Deferred revenue	(2,275)	26,082	(2,896)
Net cash provided by operating activities	228,596	138,208	149,703
Investing Cash Flows:
Proceeds from the sales and maturities of short-term investments	0	4,124	3,112
Purchases of short-term investments	0	0	(7,820)
Proceeds from sale of building	2,068	0	0
Purchases of property, plant, and equipment	(43,336)	(48,366)	(30,761)
Acquisitions of businesses and other intangible assets, net of cash acquired	(11,700)	(84,596)	(20,906)
Net cash used in investing activities	(52,968)	(128,838)	(56,375)
Financing Cash Flows:
Proceeds from issuance of common stock	32,807	29,990	53,013
Repurchase of common stock	(85,000)	(70,053)	(49,995)
Tax benefit from share options exercised	217	280	386
Dividends paid	(25,590)	(22,911)	(20,398)
Net increase (decrease) in short-term borrowing	1,190	(2,660)	3,748
Proceeds from line of credit	25,000	0	0
Repayments of other borrowings	(7,268)	(3,659)	(7,762)
Purchase of remaining noncontrolling interest in majority owned subsidiaries	(11,270)	0	0
Proceeds (payments) for the sale of subsidiary shares from (to) noncontrolling interest	7	(41)	0
Net cash used in financing activities	(69,907)	(69,054)	(21,008)
Effect of exchange rate changes on cash and cash equivalents	(1,176)	(3,357)	(2,781)
Net change in cash and cash equivalents	104,545	(63,041)	69,539
Cash and cash equivalents at the beginning of the period	230,281	293,322	223,783
Cash and cash equivalents at the end of the period	$ 334,826	$ 230,281	$ 293,322