CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (28,862)	$ 122,437	$ (19,191)	$ 161,518
Derivative financial instruments:
Unrealized holding gains/(losses)	263	(4,649)	1,002	(4,818)
Loss reclassified to net income	314	2,043	759	2,738
Total other comprehensive income (loss)	577	(2,606)	1,761	(2,080)
Comprehensive (loss) income	$ (28,285)	$ 119,831	$ (17,430)	$ 159,438

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=51831270

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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