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Uncompleted Contracts - Gross and Net Amounts of Uncompleted Contracts (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Disclosure Customer Contracts Additional Information [Abstract]
Costs incurred and estimated earnings recognized on uncompleted contracts	$ 2,107,546	$ 1,875,014
Billings on uncompleted contracts	2,054,834	1,829,340
Total	52,712	45,674
Shown on balance sheet as:
Costs and estimated earnings in excess of billings on uncompleted contracts	105,094	104,001
Billings on uncompleted contracts in excess of costs and estimated earnings	52,382	58,327
Total	$ 52,712	$ 45,674

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Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method.

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-Publisher FASB
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