CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities
Net income	$ 146,325	$ 123,861
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	16,741	17,847
Amortization of intangible assets	21,932	22,069
Amortization of debt issuance expenses	859	849
Share-based compensation expense	11,963	9,489
Deferred income taxes	(471)	(64)
Excess tax benefit from share based compensation	(3,680)	(4,771)
Non-cash interest expense associated with forward starting swaps	3,637	3,740
Changes in:
Receivables	(16,218)	(13,156)
Inventories	(15,584)	5,380
Other current assets	(3,352)	4,743
Trade accounts payable	13,291	11,480
Accrued expenses	(5,852)	83
Other — net	(3,411)	(36)
Net cash flows provided by operating activities	166,180	181,514
Cash flows from investing activities
Cash purchases of property, plant and equipment	(23,299)	(15,822)
Acquisition of businesses, net of cash acquired	(25,995)	(36,849)
Other — net	(29)	(130)
Net cash flows used in investing activities	(49,323)	(52,801)
Cash flows from financing activities
Borrowings under revolving facilities for acquisitions	25,995	34,648
Borrowings under revolving facilities	54,019	28,425
Payments under revolving facilities	(36,181)	(31,824)
Dividends paid	(41,193)	(35,421)
Proceeds from stock option exercises	8,831	22,983
Excess tax benefit from stock-based compensation	3,680	4,771
Purchase of common stock	(83,060)	(84,479)
Unvested shares surrendered for tax withholding	(2,836)	(1,772)
Other	0	(3,181)
Net cash flows used in financing activities	(70,745)	(65,850)
Effect of exchange rate changes on cash and cash equivalents	(406)	(7,238)
Net increase in cash	45,706	55,625
Cash and cash equivalents at beginning of year	439,629	318,864
Cash and cash equivalents at end of period	485,335	374,489
Cash paid for:
Interest	16,354	16,557
Income taxes	$ 61,801	$ 25,445