CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH PROVIDED BY OPERATING ACTIVITIES:
Net earnings	$ 107,866	$ 110,758
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	48,915	33,055
Stock-based compensation arrangements	17,278	14,400
Deferred income taxes	2,187	3,189
Other, net	(3,620)	(6,844)
(Decrease) increase in cash, net of acquisitions, resulting from changes in:
Accounts receivable	(19,128)	49,623
Inventories	(23,604)	(13,640)
Prepaid expenses and other current assets	(11,487)	1,645
Other assets	3,612	(1,717)
Accounts payable	26,446	(11,093)
Deferred revenue	1,863	2,731
Accrued payroll and other liabilities	(13,273)	(11,123)
Accrued income taxes	(7,885)	(33,078)
Pension and other long-term liabilities	(5,869)	15,438
Net cash provided by operating activities	123,301	153,344
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to property and equipment, net	(17,781)	(13,435)
Proceeds from sale of assets	2,973
Proceeds from sale of business	0	25,920
Business acquisitions, net of cash acquired	(602,456)	(14,195)
Other investments	(5,000)	(9,500)
Net cash (used) provided by investing activities	(622,264)	(11,210)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from credit facility and long-term debt, including current portion	723,054	0
Repayments of credit facility	378,095	0
Repurchase of common stock	(49,996)	(99,957)
Dividends paid	(46,064)	(44,330)
Proceeds from shares issued pursuant to stock-based compensation plans	17,350	16,890
Payments Related to Tax Withholding for Share-based Compensation	(10,346)	(12,113)
Other financing activities	(522)	(11)
Net cash provided (used) by financing activities	255,381	(139,521)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	323	(13,761)
Net decrease in cash and cash equivalents	(243,259)	(11,148)
Cash, cash equivalents and restricted cash, beginning of year	512,144	519,090
Cash, cash equivalents and restricted cash, end of period	$ 268,885	$ 507,942