CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CASH PROVIDED BY OPERATING ACTIVITIES:
Net earnings	$ 169,913	$ 183,909
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	76,037	49,363
Stock-based compensation arrangements	27,371	24,962
Deferred income taxes	(1,197)	1,919
Other, net	39	(4,020)
(Decrease) increase in cash, net of acquisitions, resulting from changes in:
Accounts receivable	5,460	63,266
Inventories	(30,215)	(5,050)
Prepaid expenses and other current assets	43	(2,194)
Other assets	11,474	(1,410)
Accounts payable	38,873	(22,166)
Deferred revenue	7,087	5,856
Accrued payroll and other liabilities	(4,120)	3,231
Accrued income taxes	(19,555)	(35,762)
Pension and other long-term liabilities	(4,385)	13,939
Net cash provided by operating activities	276,825	275,843
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property and equipment, net	(32,034)	(20,665)
Proceeds from sale of assets	6,365
Proceeds from sale of business	0	25,920
Business acquisitions, net of cash acquired	(601,927)	(22,166)
Other investments	(5,000)	(15,500)
Net cash (used) provided by investing activities	(632,596)	(32,411)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from credit facility and long-term debt, including current portion	723,054	0
Repayments of credit facility	393,634	0
Repurchase of common stock	(124,996)	(99,957)
Dividends paid	(68,852)	(66,451)
Proceeds from shares issued pursuant to stock-based compensation plans	20,776	24,184
Payments Related to Tax Withholding for Share-based Compensation	(10,458)	(14,663)
Other financing activities	(525)	(12)
Net cash provided (used) by financing activities	145,365	(156,899)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(6,347)	(12,288)
Net decrease in cash and cash equivalents	(216,753)	74,245
Cash, cash equivalents and restricted cash, beginning of year	512,144	519,090
Cash, cash equivalents and restricted cash, end of period	$ 295,391	$ 593,335