CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net earnings	$ 145,137	$ 145,343
Income items not affecting cash:
Depreciation and amortization	44,859	61,208
Deferred income taxes	599	(1,904)
Stock-based compensation plans	19,997	19,313
Other non-cash items	(6,332)	3,007
Changes in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	41,476	26,711
Increase in inventories	(22,427)	(34,921)
Increase in prepaid expenses and other current assets	(24,243)	(40,050)
Increase in other assets	4,918	(2,502)
Decrease in accounts payable	(6,720)	(8,355)
(Decrease) increase in deferred revenue	(4,382)	3,466
Decrease in accrued payroll and other liabilities	(21,438)	(34,047)
Decrease in accrued income taxes	(4,226)	(9,267)
Increase (decrease) in pension and other long-term liabilities	5,453	(307)
Cash provided by operating activities	172,671	127,695
Cash flows from investing activities:
Additions to property and equipment	(39,188)	(31,096)
Business acquisitions, net of cash acquired	0	(27,182)
Other investments	(3,000)	0
Cash used by investing activities	(42,188)	(58,278)
Cash flows from financing activities:
Net proceeds of long-term debt, including current portion	0	247,708
Repurchase of common stock	(129,010)	(124,384)
Dividends paid	(32,020)	(28,686)
Proceeds from shares issued pursuant to stock-based compensation plans	7,117	15,085
Excess tax benefit of stock options exercised	1,231	4,468
Other financing activities	(139)	(317)
Cash used by financing activities	(152,821)	113,874
Effect of exchange rate changes on cash	5,981	(1,929)
Net (decrease) increase in cash and cash equivalents	(16,357)	181,362
Cash and cash equivalents, beginning of period	440,846	193,137
Cash and cash equivalents, end of period	$ 424,489	$ 374,499

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).