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Subsequent Events - Additional Information (Details) - Servier Loan [Member] € in Millions |  | 1 Months Ended |
--- | --- | --- | ---
Jan. 09, 2015 EUR (€) Tranche | Aug. 31, 2017 EUR (€) Tranche | Jan. 31, 2017 EUR (€) | Jan. 31, 2016 EUR (€)
Subsequent Event [Line Items] |  |  |  |
Principal payment amount |  |  |  | € 3.0
Number of tranches | Tranche | 3 |  |  |
Tranche Two [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date | Jan. 15, 2017 |  |  |
Principal payment amount | € 5.0 |  |  |
Tranche Three [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date | Jan. 15, 2018 |  |  |
Principal payment amount | € 7.0 |  |  |
Amendment No.3 [Member] | Tranche Two [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  |  | Jul. 15, 2017 |
Principal payment amount |  |  | € 5.0 |
Subsequent Event [Member] | Amendment No.4 [Member] | Tranche Two [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  | Sep. 15, 2017 |  |
Principal payment amount |  | € 5.0 |  |
Subsequent Event [Member] | Amendment No.4 [Member] | Tranche Three [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  | Jan. 15, 2018 |  |
Principal payment amount |  | € 7.0 |  |
Number of tranches | Tranche |  | 4 |  |
Subsequent Event [Member] | Amendment No.4 [Member] | Tranche Three in Tranche One [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  | Sep. 30, 2018 |  |
Principal payment amount |  | € 2.0 |  |
Subsequent Event [Member] | Amendment No.4 [Member] | Tranche Three in Tranche Two [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  | Sep. 30, 2019 |  |
Principal payment amount |  | € 2.0 |  |
Subsequent Event [Member] | Amendment No.4 [Member] | Tranche Three in Tranche Three [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  | Sep. 30, 2020 |  |
Principal payment amount |  | € 2.0 |  |
Subsequent Event [Member] | Amendment No.4 [Member] | Tranche Three in Tranche Four [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maturity date |  | Sep. 30, 2021 |  |
Principal payment amount |  | € 1.0 |  |

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- Definition Amount of the total principal payments made during the annual reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Definition Refers to the number of tranches. + References No definition available. + Details
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