Consolidated Statement Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ 225,559	$ 235,337
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	55,805	49,743
Deferred income taxes	1,505	16,543
Gain on disposal of assets	(89)	(2,910)
Stock-based compensation	12,893	13,774
Pension contributions	(31,557)	(39,510)
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	(77,580)	(70,361)
Inventories	(4,228)	(7,271)
Accounts payable	(23,479)	(29,167)
Accruals for incentive compensation	(12,316)	(2,001)
Other current payables and accrued expenses	(3,099)	13,400
Other assets	18,007	4,054
Other liabilities	(35,286)	(9,335)
Net cash provided by operating activities	57,921	172,296
Cash flows from investing activities:
Cash paid for acquisitions, net of cash received	(191,304)	0
Additions to property, plant and equipment	(46,153)	(43,236)
Proceeds from life insurance contracts	1,941	0
Maturity of net investment hedges	3,016	(641)
Proceeds from disposal of assets	473	3,630
Net cash used in investing activities	(232,027)	(40,247)
Cash flows from financing activities:
Cash dividends paid to shareholders	(101,184)	(89,463)
Increase (decrease) in revolving credit facility borrowings and overdrafts	21,595	(138,142)
Deferred financing costs	(5,373)	(4,796)
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	494
Employee withholding taxes paid	(11,485)	(13,315)
Purchase of treasury stock	(53,211)	(71,714)
Net cash provided by financing activities	343,611	235,379
Effect of exchange rate changes on cash and cash equivalents	(2,111)	(9,424)
Net change in cash and cash equivalents	167,394	358,004
Cash and cash equivalents at beginning of year	323,992	181,988
Cash and cash equivalents at end of period	491,386	539,992
Interest paid, net of amounts capitalized	21,817	24,971
Income taxes paid	$ 50,962	$ 52,719