CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net earnings	$ 89,232	$ 80,624
Income items not affecting cash:
Depreciation and amortization	30,016	43,631
Deferred income taxes	95	(1,324)
Stock-based compensation plans	13,400	13,876
Other non-cash items	(1,350)	(629)
Changes in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	54,741	18,950
Increase in inventories	(17,143)	(24,204)
Increase in prepaid expenses and other current assets	(21,520)	(11,924)
Increase in other assets	(423)	(3,246)
Decrease in accounts payable	(4,296)	(418)
(Decrease) increase in deferred revenue	(437)	1,861
Decrease in accrued payroll and other liabilities	(17,580)	(31,382)
Decrease in accrued income taxes	(2,940)	(3,572)
Increase (decrease) in pension and other long-term liabilities	4,436	(452)
Cash provided by operating activities	126,231	81,791
Cash flows from investing activities:
Additions to property and equipment	(26,429)	(18,730)
Business acquisitions, net of cash acquired	0	(2,351)
Other investments	(3,000)	0
Cash used by investing activities	(29,429)	(21,081)
Cash flows from financing activities:
Repurchase of common stock	(90,201)	(23,801)
Dividends paid	(21,485)	(19,168)
Proceeds from shares issued pursuant to stock-based compensation plans	5,656	14,281
Excess tax benefit of stock options exercised	552	2,326
Other financing activities	(140)	(27)
Cash used by financing activities	(105,618)	(26,389)
Effect of exchange rate changes on cash	(2,259)	8,164
Net (decrease) increase in cash and cash equivalents	(11,075)	42,485
Cash and cash equivalents, beginning of period	440,846	193,137
Cash and cash equivalents, end of period	$ 429,771	$ 235,622

Name:	us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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).