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Commitments and Contingencies - Additional Information (Details) - 12 months ended Jun. 30, 2015 - Claim	Total
Commitments And Contingencies Disclosure [Abstract]
Name of defendants	The Company, PGSC, members of PGSC’s board, Coeur, and Hollywood Merger Sub, Inc.
Number of class action suits	6

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- Definition

Identifies the named defendant in a lawsuit.

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-Name Accounting Standards Codification



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The total number of new claims filed pertaining to a loss contingency during the period.

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