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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) Statement - USD ($) $ in Thousands		12 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Statements of Comprehensive Income [Abstract]
Net income (loss)		$ (32,682)	$ (8,128)	$ (47,696)
Equity interest in investee's unrealized gains on hedging derivatives, net of taxes	[1]	0	(18)	(2)
Comprehensive loss		$ (32,682)	$ (8,146)	$ (47,698)
[1] The tax effect during the years ended September 30, 2018, 2017, and 2016 was not material.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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