Subsequent Events - Additional Information (Details) - Director	9 Months Ended
	Sep. 30, 2016	Oct. 26, 2016
Subsequent Event [Line Items]
Registration rights agreement description	The Company agreed to file a registration statement (the “Registration Statement”) providing for the resale of EF Realisation Stock no later than the earlier of (the “Filing Deadline”): (i) October 26, 2017, and (ii) 30 days after the date the Company first becomes eligible to file a registration statement on Form S-3. The Company agreed to cause the Registration Statement to become effective no later than 120 days after the Filing Deadline.
Subsequent Event | EF Realisation Company Limited | Maximum | Class A Voting Common Stock [Member]
Subsequent Event [Line Items]
Number of directors to be nominated		2
Subsequent Event | EF Realisation Company Limited | Minimum | Class A Voting Common Stock [Member]
Subsequent Event [Line Items]
Number of directors to be nominated		1
Subsequent Event | EF Realisation Company Limited | Board Representation Agreement | Class A Voting Common Stock [Member]
Subsequent Event [Line Items]
Minimum ownership percentage on common stock issued and outstanding required for nominating two directors		15.00%
Minimum ownership percentage on common stock issued and outstanding required for nominating one director		10.00%