CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH PROVIDED BY OPERATING ACTIVITIES:
Net earnings	$ 101,794	$ 89,232
Income items not affecting cash:
Depreciation and amortization	30,102	30,016
Deferred income taxes	26	95
Stock-based compensation arrangements	13,327	13,400
Other non-cash items	(577)	(1,350)
Changes in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	54,205	54,741
Decrease (increase) in inventories	13,732	(17,143)
Increase in prepaid expenses and other current assets	(7,243)	(11,503)
Increase in other assets	(3,048)	(423)
Decrease in accounts payable	(3,865)	(4,296)
Decrease in deferred revenue	(2,508)	(437)
Increase (decrease) in accrued payroll and other liabilities	7,618	(17,580)
Decrease in accrued income taxes	(6,629)	(13,247)
Increase in pension and other long-term liabilities	329	4,726
Cash provided by operating activities	197,263	126,231
CASH USED BY INVESTING ACTIVITIES:
Additions to property and equipment, net	(23,291)	(26,429)
Business acquisitions, net of cash acquired	5,165	0
Other investments	0	3,000
Cash used by investing activities	(28,456)	(29,429)
CASH PROVIDED (USED) BY FINANCING ACTIVITIES:
Proceeds from long-term debt, including current portion	150,000	0
Repayments of long-term debt	(3,750)	0
Repurchase of common stock	(116,830)	(90,201)
Dividends paid	(25,909)	(21,485)
Proceeds from shares issued pursuant to stock-based compensation plans	3,885	5,656
Excess tax benefit of stock options exercised	469	552
Other financing activities	(966)	(140)
Cash provided (used) by financing activities	6,899	(105,618)
Effect of exchange rate changes on cash	(5,012)	(2,259)
Net increase (decrease) in cash and cash equivalents	170,694	(11,075)
Cash and cash equivalents, beginning of period	321,739	440,846
Cash and cash equivalents, end of period	$ 492,433	$ 429,771