CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net earnings	$ 145,343	$ 178,304
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	61,208	39,466
Deferred income taxes	(1,904)	(8,397)
Stock-based compensation plans	19,313	19,010
Other non-cash items	3,007	802
Changes in operating assets and liabilities, net of acquisitions:
Decrease (increase) in accounts receivable	26,711	(3,654)
Increase in inventories	(34,921)	(24,463)
(Increase) decrease in prepaid expenses and other current assets	(40,050)	20,395
Increase in other assets	(2,502)	(5,244)
(Decrease) increase in accounts payable	(8,355)	9,604
Increase (decrease) in deferred revenue	3,466	(5,659)
Decrease in accrued payroll and other liabilities	(34,047)	(7,291)
Decrease in accrued income taxes	(9,267)	(11,377)
(Decrease) increase in pension and other long-term liabilities	(307)	8,449
Cash provided by operating activities	127,695	209,945
Cash flows from investing activities:
Additions to property and equipment	(31,100)	(51,225)
Proceeds from sale of property and equipment	4	225
Business acquisitions, net of cash acquired	(27,182)	(174,696)
Other investments		3,081
Cash used by investing activities	(58,278)	(222,615)
Cash flows from financing activities:
Proceeds from long-term debt, net	247,708
Repurchase of common stock	(124,384)	(35,725)
Proceeds from shares issued pursuant to stock-based compensation plans	15,085	11,983
Excess tax benefit from stock-based compensation plans	4,468	5,592
Dividends paid	(28,686)
Other financing activities	(317)	17
Cash provided (used) by financing activities	113,874	(18,133)
Effect of exchange rate changes on cash	(1,929)	(11,341)
Net increase (decrease) in cash and cash equivalents	181,362	(42,144)
Cash and cash equivalents, beginning of period	193,137	422,047
Cash and cash equivalents, end of period	$ 374,499	$ 379,903

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 7

-Footnote 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3044-108585

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 8, 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6676-107765

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 7, 26

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016