CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities
Net income	$ 123,861	$ 106,522
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,847	18,092
Amortization of intangible assets	22,069	20,301
Amortization of debt issuance expenses	849	637
Share-based compensation expense	9,489	8,176
Deferred income taxes	(64)	3,537
Excess tax benefit from share based compensation	(4,771)	(2,456)
Non-cash interest expense associated with forward starting swaps	3,740	3,845
Changes in:
Receivables	(13,156)	(7,390)
Inventories	5,380	787
Other current assets	4,743	(8,596)
Trade accounts payable	11,480	(1,213)
Accrued expenses	83	(1,242)
Other - net	(36)	(1,522)
Net cash flows provided by operating activities	181,514	139,478
Cash flows from investing activities
Cash purchases of property, plant and equipment	(15,822)	(18,688)
Acquisition of businesses, net of cash acquired	(36,849)	(34,201)
Other - net	(130)	(90)
Net cash flows used in investing activities	(52,801)	(52,979)
Cash flows from financing activities
Borrowings under revolving facilities for acquisitions	34,648	20,000
Borrowings under revolving facilities	28,425	31,510
Payments under revolving facilities	(31,824)	(102,298)
Dividends paid	(35,421)	(30,892)
Proceeds from stock option exercises	22,983	27,976
Excess tax benefit from stock-based compensation	4,771	2,456
Purchase of common stock	(84,479)	(36,042)
Unvested shares surrendered for tax withholding	(1,772)	(2,265)
Other	(3,181)	(1,292)
Net cash flows used in financing activities	(65,850)	(90,847)
Effect of exchange rate changes on cash and cash equivalents	(7,238)	(4,801)
Net increase (decrease) in cash	55,625	(9,149)
Cash and cash equivalents at beginning of year	318,864	230,259
Cash and cash equivalents at end of period	374,489	221,110
Cash paid for:
Interest	16,557	20,658
Income taxes	25,445	31,521
Significant non-cash activities:
Debt acquired with acquisition of business		$ 4,680