CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net income	$ 255,215	$ 37,630	$ 193,857
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of fixed assets	(96)	0	(2,831)
Asset impairments	2,747	198,519	0
Depreciation and amortization	35,007	36,827	36,882
Amortization of intangible assets	44,327	41,485	35,504
Amortization of debt issuance expenses	1,703	1,685	1,263
Share-based compensation expense	16,993	13,102	12,076
Deferred income taxes	(3,156)	(37,229)	(3,576)
Excess tax benefit from share-based compensation	(8,560)	(4,474)	(5,298)
Non-cash interest expense associated with forward starting swaps	7,430	7,637	3,570
Forward starting interest rate contract settlement	0	0	(38,707)
Changes in (net of the effect from acquisitions):
Receivables	6,195	12,747	(16,488)
Inventories	9,088	23,799	(607)
Other current assets	6,562	(12,127)	877
Trade accounts payable	15,460	(1,376)	(8,645)
Accrued expenses	11,790	9,944	7,411
Other - net	817	(1,989)	1,953
Net cash flows provided by operating activities	401,522	326,180	217,241
Cash flows from investing activities
Purchases of property, plant and equipment	(31,536)	(35,807)	(35,175)
Acquisition of businesses, net of cash acquired	(36,849)	(68,930)	(443,634)
Proceeds from fixed asset disposals	567	0	12,651
Other - net	(344)	(529)	(3,379)
Net cash flows used in investing activities	(68,162)	(105,266)	(469,537)
Cash flows from financing activities
Borrowings under revolving facilities and credit facilities for acquisitions	34,648	35,000	365,000
Borrowings under revolving facilities	38,453	94,479	471,222
Proceeds from issuance of Senior Notes	0	0	349,125
Payments under revolving facilities, credit facilities and term loan	(89,478)	(158,825)	(906,115)
Debt issuance costs	0	0	(5,451)
Dividends paid	(72,905)	(64,087)	(54,613)
Cash received from options exercised	35,306	45,771	33,064
Excess tax benefit from share-based compensation	8,560	4,474	5,298
Purchase of common stock	(167,503)	(89,563)	0
Unvested shares surrendered for tax withholding	(1,902)	(2,340)	(6,008)
Other	(4,224)	(1,394)	1,890
Net cash flows (used in) provided by financing activities	(219,045)	(136,485)	253,412
Effect of exchange rate changes on cash and cash equivalents	6,450	4,176	(5,993)
Net increase (decrease) in cash	120,765	88,605	(4,877)
Cash and cash equivalents at beginning of year	318,864	230,259	235,136
Cash and cash equivalents at end of period	439,629	318,864	230,259
Cash paid for:
Interest	33,432	32,639	27,749
Income taxes	73,657	87,603	66,087
Significant non-cash activities:
Contingent consideration for acquisition	0	8,370	3,000
Debt acquired with acquisition of business	$ 0	$ 4,680	$ 1,400