Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions |
Dec. 31, 2018 |
Jun. 30, 2018 |
|---|---|---|
| Commitments and Contingencies Disclosure [Abstract] | ||
| Outstanding performance and payment bonds | $ 9.4 | $ 8.3 |
| Estimated costs to complete projects secured by performance and payment bonds | $ 1.6 | $ 4.4 |
| X | ||||||||||
- Definition Estimated costs to complete projects secured by performance and payment bonds. No definition available.
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| X | ||||||||||
- Definition Outstanding performance and payment bonds. No definition available.
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| X | ||||||||||
- References No definition available.
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