CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010		Dec. 31, 2009
CASH PROVIDED BY OPERATING ACTIVITIES:
Net earnings	$ 221,474	$ 248,126	[1]	$ 230,213
Income items not affecting cash:
Depreciation and amortization	77,498	61,297		42,426
Deferred income taxes	(12,195)	(14,099)		(608)
Stock-based compensation arrangements	24,917	25,575		23,955
Inducement loss on exchange offer for convertible notes	0	0		1,997
Other non-cash items	12,654	10,320		(1,749)
Changes in operating assets and liabilities, net of acquisitions:
Decrease (increase) in accounts receivable	17,992	(47,711)		9,981
Increase in inventories	(48,361)	(25,151)		(301)
(Increase) decrease in prepaid expenses and other current assets	(11,473)	23,975		(22,946)
Increase in other assets	(5,589)	(28,573)		(10,906)
(Decrease) increase in accounts payable	(5,565)	11,563		3,293
Increase (decrease) in deferred revenue	5,426	(15,448)		(6,214)
Decrease in accrued payroll and other liabilities	(25,599)	(5,753)		(20,327)
(Decrease) increase in accrued income taxes	(9,865)	(2,928)		13,887
Increase in pension and other long-term liabilities	2,577	14,058		9,059
Cash provided by operating activities	243,891	255,251		271,760
CASH USED BY INVESTING ACTIVITIES:
Additions to property and equipment	(42,014)	(65,973)		(41,874)
Proceeds from sale of property and equipment	68	225		2,892
Business acquisitions, net of cash acquired	(27,182)	(402,721)		(73,565)
Other investments	1,991	3,080		4,850
Cash used by investing activities	(67,137)	(465,389)		(107,697)
CASH PROVIDED (USED) BY FINANCING ACTIVITIES:
Net proceeds of long-term debt, including current portion	247,708	0		0
Cash inducement on exchange offer for convertible notes	0	0		(1,997)
Repurchase of common stock	(160,669)	(35,725)		(73,169)
Dividends paid	(38,037)	0		0
Proceeds from shares issued pursuant to stock-based compensation plans	21,706	21,469		22,325
Excess tax benefit of stock options exercised	5,195	7,649		8,834
Other financing activities	(458)	120		465
Cash provided (used) by financing activities	75,445	(6,487)		(43,542)
Effect of exchange rate changes on cash	(4,490)	(12,285)		12,084
Net increase (decrease) in cash and cash equivalents	247,709	(228,910)		132,605
Cash and cash equivalents, beginning of year	193,137	422,047		289,442
Cash and cash equivalents, end of year	$ 440,846	$ 193,137		$ 422,047

[1] Amounts have been adjusted for the reclassification of certain discontinued operations to continuing operations.