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Fair Value (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Fair Value Disclosures [Abstract] |  |  |  |
Contingently convertible Series E units liability, Beginning Balance |  |  | $ 72,057 | $ 66,938
Remeasurement of Series E units | $ 525 | $ (3,588) | (3,456) | 4,112
Contingently convertible Series E units liability, Ending Balance | 68,601 | 71,050 | 68,601 | 71,050
Preferred shares derivative liability, Beginning Balance |  |  | 57,960 | 28,150
Preferred shares derivative liability, Issuance |  |  |  | 26,922
Remeasurement of preferred shares | 3,000 | 1,750 | 2,300 | 2,348
Preferred shares derivative liability, Ending Balance | $ 60,260 | $ 57,420 | $ 60,260 | $ 57,420

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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 + Details
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- Definition Amount of the unrealized gain (loss) in earnings for the period from the increase (decrease) in fair value on hybrid instruments measured at fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 15 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35708913&loc=d3e50876-113970 + Details
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