Consolidated Condensed Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013
Consolidated Condensed Statements of Income
Sales revenue, net	$ 435,674us-gaap_SalesRevenueNet	$ 380,730us-gaap_SalesRevenueNet	$ 1,067,401us-gaap_SalesRevenueNet	$ 1,004,633us-gaap_SalesRevenueNet
Cost of goods sold	254,263us-gaap_CostOfGoodsSold	233,029us-gaap_CostOfGoodsSold	632,726us-gaap_CostOfGoodsSold	613,513us-gaap_CostOfGoodsSold
Gross profit	181,411us-gaap_GrossProfit	147,701us-gaap_GrossProfit	434,675us-gaap_GrossProfit	391,120us-gaap_GrossProfit
Selling, general and administrative expense	116,368	98,308	312,906	278,697
Asset impairment charges			9,000us-gaap_AssetImpairmentCharges	12,049us-gaap_AssetImpairmentCharges
Operating income	65,043us-gaap_OperatingIncomeLoss	49,393us-gaap_OperatingIncomeLoss	112,769us-gaap_OperatingIncomeLoss	100,374us-gaap_OperatingIncomeLoss
Nonoperating income, net	87us-gaap_NonoperatingIncomeExpense	13us-gaap_NonoperatingIncomeExpense	234us-gaap_NonoperatingIncomeExpense	153us-gaap_NonoperatingIncomeExpense
Interest expense	(4,173)us-gaap_InterestExpense	(2,513)us-gaap_InterestExpense	(11,588)us-gaap_InterestExpense	(7,647)us-gaap_InterestExpense
Income before income taxes	60,957	46,893	101,415	92,880
Income tax expense (benefit):
Current	9,328us-gaap_CurrentIncomeTaxExpenseBenefit	10,911us-gaap_CurrentIncomeTaxExpenseBenefit	14,255us-gaap_CurrentIncomeTaxExpenseBenefit	24,780us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred	(3,748)us-gaap_DeferredIncomeTaxExpenseBenefit	(1,542)us-gaap_DeferredIncomeTaxExpenseBenefit	(3,454)us-gaap_DeferredIncomeTaxExpenseBenefit	(7,133)us-gaap_DeferredIncomeTaxExpenseBenefit
Net income	$ 55,377	$ 37,524	$ 90,614	$ 75,233
Earnings per share:
Basic (in dollars per share)	$ 1.95us-gaap_EarningsPerShareBasic	$ 1.17us-gaap_EarningsPerShareBasic	$ 3.17us-gaap_EarningsPerShareBasic	$ 2.35us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ 1.92us-gaap_EarningsPerShareDiluted	$ 1.16us-gaap_EarningsPerShareDiluted	$ 3.12us-gaap_EarningsPerShareDiluted	$ 2.33us-gaap_EarningsPerShareDiluted
Weighted average shares of common stock used in computing net earnings per share:
Basic (in shares)	28,414	32,047	28,630	31,982
Diluted (in shares)	28,824	32,482	29,070	32,311

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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