Condensed Consolidated Statements of Earnings (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Condensed Consolidated Statements of Earnings (unaudited) [Abstract]
Net sales	$ 865,281us-gaap_SalesRevenueNet	$ 834,052us-gaap_SalesRevenueNet
Cost of sales	347,120us-gaap_CostOfRevenue	345,116us-gaap_CostOfRevenue
Gross profit	518,161us-gaap_GrossProfit	488,936us-gaap_GrossProfit
Selling, general and administrative expenses	271,265	265,536
Income from operations	246,896us-gaap_OperatingIncomeLoss	223,400us-gaap_OperatingIncomeLoss
Interest expense, net	19,836us-gaap_InterestExpense	19,827us-gaap_InterestExpense
Other income/(expense), net	(679)us-gaap_NonoperatingIncomeExpense	1,420us-gaap_NonoperatingIncomeExpense
Earnings before income taxes	226,381	204,993
Income taxes	70,608us-gaap_IncomeTaxExpenseBenefit	57,767us-gaap_IncomeTaxExpenseBenefit
Net earnings	$ 155,773us-gaap_NetIncomeLoss	$ 147,226us-gaap_NetIncomeLoss
Earnings per share:
Basic (in dollars per share)	$ 1.55us-gaap_EarningsPerShareBasic	$ 1.48us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ 1.54us-gaap_EarningsPerShareDiluted	$ 1.46us-gaap_EarningsPerShareDiluted
Weighted average common shares outstanding:
Basic (in shares)	100,377	99,557
Diluted (in shares)	101,361	100,572
Dividends declared per common share (in dollars per share)	$ 0.2500	$ 0.2000

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770