CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 34,845	$ (386)	$ 32,072	$ (3,913)
Other comprehensive loss:
Unrealized loss on derivative instruments	(34)	(23)	(14)	(48)
Other comprehensive loss	(34)	(23)	(14)	(48)
Comprehensive income (loss)	34,811	(409)	32,058	(3,961)
Less: comprehensive income (loss) attributable to non-controlling interests	9,904	359	9,168	(667)
Comprehensive income (loss) attributable to common shareholders	$ 24,907	$ (768)	$ 22,890	$ (3,294)