Derivative Instruments - Schedule of Notional Volumes of Derivative Instruments (Details) - lb lb in Thousands	Sep. 30, 2019	Jun. 30, 2019
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(53,443)	(48,183)
Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(51,563)	(42,113)
Cash Flow Hedging \| Not Designated as Hedging Instrument \| Long
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	(1,880)	(6,070)

Nominal number of units used to calculate payment on derivative.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959

Name:	us-gaap_DerivativeNonmonetaryNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant