Summary of Significant Accounting Policies (Tables)

9 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Schedule of Net Gains and Losses Realized on Derivative Instruments

Net gains and losses related to these contracts are recorded as a component of "Other expenses, net" in the accompanying unaudited Consolidated Statements of Operations and are as follows for the three and nine months ended June 30, 2018 and 2017 (in thousands):

	Three Months Ended				Nine Months Ended
	June 30,				June 30,
	2018		2017		2018		2017
Realized gains (losses) on derivatives not designated as hedging instruments	$	4,889	$	147	$	(1,332)	$	(450)