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Tax Receivable Agreement Liability Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2017
Tax Receivable Agreement [Abstract]
Adjustment to tax receivable agreement liability	$ 30,317,000	$ 2,615,000	$ (27,702,000)	$ 0	$ 8,140
Tax receivable agreement, percentage of realized cash saving in tax to pass through	8500.00%		8500.00%
Deferred Tax Assets, Investment in Subsidiaries	$ 106,107,000		$ 106,107,000		$ 109,375,000

X

- Definition

Adjustment For Change In Estimated Tax Rate Impact To Tax Receivable Agreement, Increase (Decrease)

+ References

No definition available.

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- Definition

Tax Receivable Agreement [Abstract]

+ References

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- Definition

Tax Receivable Agreement, Percentage of Realized Cash Saving in Tax To Be Pass Through

+ References

No definition available.

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X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the entity's investment in its wholly-owned subsidiaries.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319

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