Summary of Significant Accounting Policies (Tables)

6 Months Ended

Mar. 31, 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 six months ended March 31, 2018 and 2017 (in thousands):

	Three Months Ended				Six Months Ended
	March 31,				March 31,
	2018		2017		2018		2017
Realized gains (losses) on derivatives not designated as hedging instruments	$	(4,548)	$	406	$	(6,221)	$	(597)