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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2015
Ciner Wyoming |  |  |
Commitments And Contingencies [Line Items] |  |  |
Contingent consideration accrued |  |  | $ 7.2
Anadarko Holding Company |  |  |
Commitments And Contingencies [Line Items] |  |  |
Contingent consideration accrued |  |  | 7.2
Net present value payable of contingent consideration under the agreement |  |  | 50.0
Anadarko Holding Company | Ciner Wyoming |  |  |
Commitments And Contingencies [Line Items] |  |  |
Contingent consideration paid | $ 3.8 | $ 0.5 |
Lawsuit Against Hillsboro Energy LLC |  |  |
Commitments And Contingencies [Line Items] |  |  |
Minimum quarterly deficiency payments |  |  | 7.5
Minimum deficiency payments |  |  | 30.0
Loss contingency |  |  | $ 16.2

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- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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