CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities
Net income	$ 282,807	$ 279,386	$ 255,215
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of fixed assets	(114)	(351)	(96)
Gain on sale of business	(18,070)	0	0
Asset impairments	795	2,473	2,747
Depreciation and amortization	35,694	33,720	35,007
Amortization of intangible assets	42,426	43,187	44,327
Amortization of debt issuance expenses	1,612	1,723	1,703
Share-based compensation expense	20,048	20,717	16,993
Deferred income taxes	(339)	(8,593)	(3,156)
Excess tax benefit from share-based compensation	(5,265)	(6,275)	(8,560)
Non-cash interest expense associated with forward starting swaps	7,030	7,223	7,430
Changes in (net of the effect from acquisitions and divestitures):
Receivables	8,832	(11,110)	6,195
Inventories	4,557	(7,821)	9,088
Other current assets	(2,728)	(5,201)	6,562
Trade accounts payable	(2,828)	(2,466)	15,460
Accrued expenses	(16,672)	23,760	11,790
Other — net	2,536	(2,411)	817
Net cash flows provided by operating activities	360,321	367,961	401,522
Cash flows from investing activities
Purchases of property, plant and equipment	(43,776)	(47,997)	(31,536)
Acquisition of businesses, net of cash acquired	(195,013)	(25,443)	(36,849)
Proceeds from fixed asset disposals	894	1,460	567
Proceeds from sale of business	27,677	0	0
Other — net	(273)	(280)	(344)
Net cash flows used in investing activities	(210,491)	(72,260)	(68,162)
Cash flows from financing activities
Borrowings under revolving credit facilities	414,032	165,014	73,101
Payment of 2.58% Senior Euro Notes	(88,420)	0	0
Payments under revolving credit facilities	(333,630)	(61,951)	(89,478)
Debt issuance costs	(1,739)	0	0
Dividends paid	(96,172)	(85,726)	(72,905)
Proceeds from stock option exercises	19,217	17,161	35,306
Excess tax benefit from share-based compensation	5,265	6,275	8,560
Purchase of common stock	(210,822)	(219,893)	(167,503)
Unvested shares surrendered for tax withholding	(3,259)	(4,952)	(1,902)
Other	0		(4,224)
Net cash flows used in financing activities	(295,528)	(184,072)	(219,045)
Effect of exchange rate changes on cash and cash equivalents	(35,421)	(42,121)	6,450
Net increase (decrease) in cash	(181,119)	69,508	120,765
Cash and cash equivalents at beginning of year	509,137	439,629	318,864
Cash and cash equivalents at end of period	328,018	509,137	439,629
Cash paid for:
Interest	33,502	32,565	33,432
Income taxes	112,613	122,295	73,657
Significant non-cash activities:
Contingent consideration for acquisition	$ 4,705	$ 0	$ 0