Consolidated Statements of Cash Flows Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Income from continuing operations	$ 71,253	$ 59,313
Income from discontinued operations, net of income taxes	(466)	2,131
Net income	70,787	61,444
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	18,533	17,323
Depreciation and amortization	17,366	18,486
Changes to value of life insurance policies	(3,459)	(4,541)
Deferred income taxes	(311)	3,914
Other non-cash items	1,114	(362)
Changes in assets and liabilities, net of effect of acquisitions:
Accounts receivable	(11,972)	(15,488)
Inventories	(12,121)	(796)
Prepaid expenses and other current assets	(935)	(1,545)
Other assets	(451)	1,960
Accounts payable	(2,571)	2,307
Accrued expenses	(1,452)	(10,676)
Unearned revenues	742	(1,393)
Other long-term liabilities	(1,344)	7,722
Net cash provided by operating activities	73,926	78,355
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(16,063)	(14,264)
Patents and other intangibles	(970)	(282)
Business acquisitions, net of cash acquired	47,314	0
Proceeds from sale of assets	270	643
Premiums on life insurance	(788)	(1,351)
Net cash used in investing activities	(64,865)	(15,254)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt borrowings	(80,000)	(89,000)
Proceeds from debt borrowings	150,000	106,000
Debt financing costs	(1,645)	0
Non-controlling interest - dividend	(10)	(27)
Dividends paid	(72,929)	(72,861)
Repurchase of common shares	(4,777)	(8,197)
Net cash used in financing activities	(9,361)	(64,085)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(300)	(984)
CASH AND CASH EQUIVALENTS, beginning of period	14,400	14,764
CASH AND CASH EQUIVALENTS, end of period	$ 14,100	$ 13,780