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Fair Value - Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Liabilities:
Participating preferred shares derivative liability	$ 75,220	$ 69,810	$ 63,090	$ 62,790
Recurring
Liabilities:
Participating preferred shares derivative liability	75,220	69,810
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring
Liabilities:
Participating preferred shares derivative liability	0	0
Significant Other Observable Inputs (Level 2) | Recurring
Liabilities:
Participating preferred shares derivative liability	0	0
Significant Unobservable Inputs (Level 3) | Recurring
Liabilities:
Participating preferred shares derivative liability	$ 75,220	$ 69,810

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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=64837297&loc=SL5624163-113959

+ Details

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- References

No definition available.

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