CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 60,824	$ 55,844
Non-controlling interests in subsidiaries’ earnings (loss)	(4)	4
Net income including non-controlling interests	60,820	55,848
Adjustments to reconcile Net income including non-controlling interests to Net cash provided by operating activities:
Rationalization and asset impairment charges (Note 6)	676	0
Depreciation and amortization	18,134	16,166
Equity earnings in affiliates, net	(538)	(270)
Deferred income taxes	7,955	822
Stock-based compensation	4,419	3,268
Pension (income) expense and settlement charges (Note 13)	(122)	(1,345)
Other, net	(4,950)	1,901
Changes in operating assets and liabilities, net of effects from acquisitions:
Increase in accounts receivable	(40,468)	(24,195)
Increase in inventories	(28,052)	(20,946)
(Increase) decrease in other current assets	(1,458)	4,517
Increase in trade accounts payable	3,191	7,164
Increase in other current liabilities	22,966	30,816
Net change in other assets and liabilities	1,204	2,494
NET CASH PROVIDED BY OPERATING ACTIVITIES	43,777	76,240
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(14,657)	(12,037)
Payments to Acquire Businesses, Net of Cash Acquired	6,235	0
Proceeds from sale of property, plant and equipment	118	203
Purchase of marketable securities	(89,545)	(34,925)
Proceeds from marketable securities	131,966	3,800
NET CASH PROVIDED BY (USED BY) INVESTING ACTIVITIES	34,117	(42,959)
CASH FLOWS FROM FINANCING ACTIVITIES
Amounts due banks, net	(60)	107
Proceeds from Issuance of Long-term Debt	0	15
Payments on long-term borrowings	(3)	(12)
Proceeds from exercise of stock options	1,962	5,643
Purchase of shares for treasury (Note 7)	(14,724)	(403)
Cash dividends paid to shareholders	(25,661)	(22,986)
Other financing activities	0	(7)
NET CASH USED BY FINANCING ACTIVITIES	(38,486)	(17,643)
Effect of exchange rate changes on Cash and cash equivalents	2,947	6,623
INCREASE IN CASH AND CASH EQUIVALENTS	42,355	22,261
Cash and cash equivalents at beginning of period	326,701	379,179
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 369,056	$ 401,440