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Commitments and Contingencies - Additional Information (Details) - USD ($) | Sep. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2012
--- | --- | --- | --- | ---
Other Commitments [Line Items] |  |  |  |
Capital lease obligations |  |  | $ 0 |
Lease Obligations and Other Commitments |  |  |  |
Other Commitments [Line Items] |  |  |  |
Contractual Obligation |  | $ 300,000 |  | $ 800,000
Capital lease obligations | $ 300,000.0 |  | $ 0 |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 + Details
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- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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