Consolidated Statement of Cash Flows Statement - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Income from continuing operations	$ 23,923	$ 17,992
Loss from discontinued operations, net of income taxes	(346)	(310)
Net income	23,577	17,682
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	6,291	5,723
Depreciation and amortization	5,818	6,304
Changes to value of life insurance policies	29	946
Deferred income taxes	(256)	6,603
Other non-cash items	98	571
Changes in assets and liabilities:
Accounts receivable	(5,913)	(7,525)
Inventories	(3,686)	(3,898)
Prepaid expenses and other current assets	(901)	(1,647)
Other assets	742	(1,001)
Accounts payable	2,634	4,576
Accrued expenses	(2,281)	(3,590)
Unearned revenues	188	3,609
Other long-term liabilities	(3,247)	1,408
Net cash provided by operating activities	23,093	29,761
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(4,443)	(6,449)
Patents and other intangibles	(72)	(102)
Business acquisition, net of cash acquired	0	0
Proceeds from sale of assets	280	324
Premiums on life insurance	(382)	(399)
Net cash used in investing activities	(4,617)	(6,626)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of debt borrowings	(29,000)	(49,000)
Proceeds from debt borrowings	37,000	51,000
Excess tax benefits from stock-based compensation	0	0
Debt financing costs	0	0
Non-controlling interest - dividend	0	0
Dividends paid	(24,322)	(24,284)
Repurchase of common shares	(3,310)	(1,273)
Issuance of common shares	0	0
Net cash used in financing activities	(19,632)	(23,557)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(1,156)	(422)
CASH AND CASH EQUIVALENTS, beginning of period	14,400	14,764
CASH AND CASH EQUIVALENTS, end of period	$ 13,244	$ 14,342