Segment Information (Financial Information By Segment) (Details) (USD $) In Thousands	3 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Sales	$ 770,259	$ 634,530
Depreciation and amortization	2,582	1,510
Operating income	31,627	24,848
Capital expenditures	2,339	1,851
North American Distribution [Member]
Sales	583,582	501,364
Depreciation and amortization	1,043	1,134
Operating income	28,404	21,420
Capital expenditures	2,190	1,715
International Distribution [Member]
Sales	196,787	140,206
Depreciation and amortization	1,539	376
Operating income	3,223	3,428
Capital expenditures	149	136
Intersegment Elimination [Member]
Sales	$ (10,110)	$ (7,040)

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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-Publisher AICPA

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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-Publisher SEC

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