Consolidated Statement Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 335,820	$ 325,114
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	85,446	75,109
Deferred income taxes	(3,439)	8,323
Gain on disposal of assets	(120)	(2,998)
Stock-based compensation	20,149	19,471
Pension contributions	(36,870)	(44,356)
Litigation settlement	(56,000)	0
Foreign currency gain on liquidation of entity	(12,214)	0
Changes in assets and liabilities, net of acquisitions:
Trade receivables	(94,945)	(36,070)
Inventories	6,211	(160)
Accounts payable	(20,560)	(29,523)
Accruals for incentive compensation	2,907	3,012
Other current payables and accrued expenses	9,423	30,663
Other assets	3,824	(10,704)
Other liabilities	(40,143)	3,956
Net cash provided by operating activities	199,489	341,837
Cash flows from investing activities:
Cash paid for acquisitions, net of cash received	(191,304)	0
Additions to property, plant and equipment	(77,318)	(70,179)
Proceeds from life insurance contracts	1,941	292
Maturity of net investment hedges	2,226	(12)
Proceeds from disposal of assets	1,275	3,664
Net cash used in investing activities	(263,180)	(66,235)
Cash flows from financing activities:
Cash dividends paid to shareholders	(151,678)	(134,051)
Decrease in revolving credit facility borrowings and overdrafts	(3,952)	(128,324)
Increase in commercial paper	39,950	0
Deferred financing costs	(5,373)	(4,780)
Repayments of debt	250,000	125,000
Proceeds from issuance of long-term debt	498,250	555,559
Loss on pre-issuance hedges	(5,310)	(3,244)
Proceeds from issuance of stock under stock plans	329	594
Employee withholding taxes paid	(11,509)	(13,315)
Purchase of treasury stock	(53,211)	(94,148)
Net cash provided by financing activities	57,496	53,291
Effect of exchange rate changes on cash and cash equivalents	(1,795)	(12,151)
Net change in cash and cash equivalents	(7,990)	316,742
Cash and cash equivalents at beginning of year	323,992	181,988
Cash and cash equivalents at end of period	316,002	498,730
Interest paid, net of amounts capitalized	38,634	45,008
Income taxes paid	$ 77,356	$ 80,050