Derivative Instruments - Schedule of Offsetting Derivative Asset and Liability Positions (Details) - Counterparty A - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 6,586	$ 291
Derivative asset, netting adjustment	0	(291)
Derivative asset, cash collateral posted	0	0
Derivative asset, net	$ 6,586	0
Derivative liability, fair value		4,292
Derivative liability, netting adjustment		(291)
Derivative liability, cash collateral posted		1,001
Derivative liability, net		$ 3,000

Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.

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