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Status of Discussions With Lenders and Noteholders / Audit Opinion - Additional Information (Detail)	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016
Minimum
Status Of Discussions With Lenders And Noteholders Audit Opinion [Line Items]
Interest coverage ratio	300.00%	300.00%	300.00%

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- Definition

Interest coverage ratio.

+ References

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+ Details

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- Definition

Status of discussions with lenders and noteholders audit opinion.

+ References

No definition available.

+ Details

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