v2.4.0.6

Note 11 - Acquisitions and Assets Held for Sale (Detail) (USD $)	9 Months Ended						1 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Sep. 28, 2012	Aug. 03, 2012	Jun. 30, 2012	Dec. 31, 2012 Land and Warehouse Assets [Member]	Dec. 31, 2012 Robinson Transport [Member]	Sep. 28, 2012 Tractors [Member]	Aug. 03, 2012 Tractors [Member]	Sep. 28, 2012 Trailers [Member]	Aug. 03, 2012 Trailers [Member]
Number of Assets Acquired									155	271	280	1,213
Recorded Fair Value of Assets Acquired				$ 8,200,000	$ 18,500,000
Property, Plant and Equipment, Net	470,684,000					370,456,000		4,600,000
Business Acquisition, Purchase Price Allocation, Property				1,100,000
Business Acquisition, Cost of Acquired Entity, Purchase Price			4,100,000
Business Acquisition, Purchase Price Allocation, Current Assets, Receivables			1,500,000
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment			3,100,000
Acquired Finite-lived Intangible Asset, Amount			1,400,000
Business Acquisition, Purchase Price Allocation, Other Assets			700,000
Business Acquisition, Purchase Price Allocation, Liabilities Assumed			2,600,000
Payments to Acquire Property, Plant, and Equipment	$ 151,876,000	$ 47,842,000					$ 800,000

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The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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The amount of acquisition cost of a business combination allocated to land and building to be used in the normal course of business, not including assets that are held-for-sale.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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