Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows provided from operating activities
Net income	$ 10,923,000	$ 12,842,000
Adjustments to reconcile net income to net cash provided from operating activities:
Depreciation and amortization	9,581,000	9,282,000
Amortization of deferred financing charges	107,000	168,000
Gain on sale of building	(153,000)	0
Share-based compensation	717,000	9,000
Changes in assets and liabilities:
Increase in accounts receivable	(6,748,000)	(12,170,000)
(Increase) decrease in inventories	(9,228,000)	6,072,000
Increase in other current assets	(4,194,000)	(7,119,000)
(Decrease) increase in accounts payable	(5,973,000)	6,310,000
Decrease in other current liabilities	(3,827,000)	(16,886,000)
Changes in other long-term assets and liabilities	(1,884,000)	(1,582,000)
Net cash provided from operating activities	(10,679,000)	(3,074,000)
Cash flows used for investing activities:
Capital expenditures	(8,553,000)	(8,024,000)
Proceeds from sale of building	1,028,000	0
Net cash used for investing activities	(7,525,000)	(8,024,000)
Cash flows (used for) provided by financing activities:
Proceeds from exercise of stock options	0	9,000
Long-term debt borrowings	14,000,000	23,000,000
Long-term debt repayments	(10,000,000)	(5,001,000)
Excess tax (deficiency) benefit from exercise of stock options	0	(331,000)
Restricted stock forfeitures	(360,000)	0
Dividends paid	(9,349,000)	(9,256,000)
Net cash (used for) provided by financing activities	(5,709,000)	8,421,000
Effect of foreign exchange rate changes on cash and cash equivalents	226,000	206,000
Net change in cash	(23,687,000)	(2,471,000)
Cash and cash equivalents at beginning of period	53,487,000	17,905,000
Cash and cash equivalents at end of period	$ 29,800,000	$ 15,434,000