CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities
Net income	$ 37,630	$ 193,857	$ 157,100
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (gain) on sale of fixed assets		(2,831)	12
Asset impairments	198,519
Depreciation and amortization	36,827	36,882	32,367
Amortization of intangible assets	41,485	35,504	25,741
Amortization of debt issuance expenses	1,685	1,263	547
Share-based compensation expense	13,102	12,076	17,358
Deferred income taxes	(37,229)	(3,576)	(7,336)
Excess tax benefit from share-based compensation	(4,474)	(5,298)	(3,457)
Non-cash interest expense associated with forward starting swaps	7,637	3,570
Forward starting interest rate contract settlement		(38,707)	(30,970)
Changes in (net of the effect from acquisitions):
Receivables	12,747	(16,488)	(22,162)
Inventories	23,799	(607)	(26,651)
Other current assets	(12,127)	877	(2,985)
Trade accounts payable	(1,376)	(8,645)	21,432
Accrued expenses	9,944	7,411	17,941
Other - net	(1,989)	1,953	5,540
Net cash flows provided by operating activities	326,180	217,241	184,477
Cash flows from investing activities
Purchases of property, plant and equipment	(35,807)	(35,175)	(31,740)
Acquisition of businesses, net of cash acquired	(68,930)	(443,634)	(91,286)
Proceeds from fixed asset disposals		12,651	720
Other - net	(529)	(3,379)
Net cash flows used in investing activities	(105,266)	(469,537)	(122,306)
Cash flows from financing activities
Borrowings under revolving facilities and credit facilities for acquisitions	35,000	365,000	53,866
Borrowings under revolving facilities	94,479	471,222
Borrowings under credit facilities		1,890	7,685
Payments under revolving facilities, credit facilities and term loan	(158,825)	(906,115)	(331,632)
Debt issuance costs		(5,451)	(2,685)
Dividends paid	(64,087)	(54,613)	(46,334)
Proceeds from stock option exercises	45,771	33,064	18,057
Excess tax benefit from share-based compensation	4,474	5,298	3,457
Purchase of common stock	(89,563)
Unvested shares surrendered for tax withholding	(2,340)	(6,008)	(2,082)
Other	(1,394)
Net cash flows (used in) provided by financing activities	(136,485)	253,412	95,521
Effect of exchange rate changes on cash and cash equivalents	4,176	(5,993)	3,918
Net increase (decrease) in cash	88,605	(4,877)	161,610
Cash and cash equivalents at beginning of year	230,259	235,136	73,526
Cash and cash equivalents at end of period	318,864	230,259	235,136
Cash paid for:
Interest	32,639	27,749	16,776
Income taxes	87,603	66,087	73,867
Significant non-cash activities:
Contingent consideration for acquisition	8,370	3,000
Debt acquired with acquisition of business	4,680	1,400	758
4.2% Senior Notes
Cash flows from financing activities
Proceeds from issuance of Senior Notes		349,125
2.58% Senior Euro Notes
Cash flows from financing activities
Proceeds from issuance of Senior Notes			96,762
4.5 % Senior Notes
Cash flows from financing activities
Proceeds from issuance of Senior Notes			$ 298,427