CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 405,031	$ 419,247	$ 414,543
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	102,469	89,597	89,354
Deferred income taxes	14,350	13,043	23,350
Gain on disposal of assets	(10,836)	(622)	(3,768)
Stock-based compensation	24,587	23,160	22,648
Pension contributions	(46,347)	(67,897)	(43,982)
Pension contributions
Changes in assets and liabilities, net of acquisitions:	(21,544)	(91,712)	(2,635)
Trade receivables	15,452	(37,628)	(40,042)
Inventories	(7,642)	89,273	19,403
Accounts payable	12,133	(17,399)	(30,947)
Accruals for incentive compensation	49,103	29,124	(30,982)
Other assets	(2,442)	46,862	64,605
Other liabilities	1,092	(61,470)	36,843
Net cash provided by operating activities	535,406	433,578	518,390
Cash flows from investing activities:
Cash paid for acquisitions, net of cash received (including $15 million of contingent consideration related to the Aromor acquisition in 2014)	(236,836)	(493,424)	(102,500)
Additions to property, plant and equipment	(126,412)	(101,030)	(143,182)
Proceeds from disposal of assets	6,856	4,302	3,295
Maturity of net investment hedges	637	12,128	3,304
Proceeds from life insurance contracts	292	868	17,750
Net cash used in investing activities	(355,463)	(577,156)	(221,333)
Cash flows from financing activities:
Cash dividends paid to shareholders	(184,897)	(158,870)	(133,239)
Increase (decrease) in revolving credit facility borrowings and overdrafts	(134,344)	136,826	8,332
Proceeds from issuance of long-term debt	(555,559)	0	(3,609)
Deferred financing costs	(5,788)	0	(1,023)
Repayments of debt	(125,000)	0	0
Loss on pre-issuance hedges	(3,244)	0	0
Proceeds from issuance of stock under stock plans	813	886	1,864
Excess tax benefits on stock-based payments	4,650	12,055	6,330
Purchase of treasury stock	(127,443)	(122,193)	(88,203)
Net cash used in financing activities	(19,694)	(131,296)	(202,330)
Effect of exchange rate changes on cash and cash equivalents	(18,245)	(21,711)	(21,659)
Net change in cash and cash equivalents	142,004	(296,585)	73,068
Cash and cash equivalents at beginning of year	181,988	478,573	405,505
Cash and cash equivalents at end of year	323,992	181,988	478,573
Cash paid for:
Interest, net of amounts capitalized	50,576	46,760	46,106
Income taxes	107,898	102,734	92,087
Noncash investing activities:
Accrued capital expenditures	$ 26,049	$ 26,030	$ 14,376