Customer Contracts (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Gross and net amount of uncompleted contracts
Costs and estimated earnings recognized on uncompleted contracts	$ 1,633,780	$ 1,435,242
Billings on uncompleted contracts	1,644,413	1,470,674
Total	(10,633)	(35,432)
Shown on balance sheet as:
Costs and estimated earnings in excess of billings on uncompleted contracts	86,071	73,008
Billings on uncompleted contracts in excess of costs and estimated earnings	96,704	108,440
Total	$ (10,633)	$ (35,432)

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 912

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

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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