Public Offering (Details)					6 Months Ended
	Mar. 13, 2014 USD ($) item $ / shares shares	Mar. 13, 2014 USD ($) $ / shares shares	Feb. 19, 2014 USD ($) $ / shares shares	Feb. 19, 2014 $ / shares shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) $ / shares
Public offering
Par value of common stock (in dollars per share) | $ / shares					$ 0.0001		$ 0.0001
Number of shares called by each warrant					1
Exercise price (in dollars per share) | $ / shares					$ 11.50
Number of fractional shares issued upon exercise of the Warrants					0
Period after the completion of the Initial Business Combination for exercise of warrants					30 days
Gross proceeds from issuance of additional private placement warrants | $						$ 6,160,000
Underwriting discount paid (as a percent)		2.00%
Payments for Underwriting Discounts | $		$ 4,410,000
Deferred underwriting discount payable (as a percent)					3.50%
Deferred underwriting discount payable | $					$ 7,717,500		$ 7,717,500
Sponsor and the Company's independent directors
Public offering
Earnout shares subject to forfeiture on the fifth anniversary of initial business combination if threshold sales price of stock is met	1,378,125	1,378,125
Threshold sale price as a condition for forfeiture of shares (in dollars per share) | $ / shares		$ 13.00
Trading period within which last sale price of the common stock equals or exceeds threshold share price that would result in forfeiture of shares | item	20
Consecutive trading period within which last sale price of the common stock equals or exceeds threshold share price that would result in forfeiture of shares		30 days
Public Offering. | Sponsor
Public offering
Price of units issued in public offering (in dollars per share) | $ / shares				$ 1.00
Gross proceeds from issuance of additional private placement warrants | $			$ 5,950,000
Public Offering. | Units
Public offering
Sale of units				21,000,000
Price of units issued in public offering (in dollars per share) | $ / shares				$ 10.00
Number of shares of common stock included in each unit			1	1
Par value of common stock (in dollars per share) | $ / shares			$ 0.0001	$ 0.0001
Number of warrants for each unit issued			0.5	0.5
Number of shares called by each warrant			1	1
Exercise price (in dollars per share) | $ / shares			$ 11.50	$ 11.50
Exercise of underwriter's over-allotment option | Sponsor
Public offering
Price of units issued in public offering (in dollars per share) | $ / shares	$ 1.00	$ 1.00
Number of shares called by each warrant	1	1
Exercise price (in dollars per share) | $ / shares	$ 11.50	$ 11.50
Additional private placement warrants issued	210,000	210,000
Gross proceeds from issuance of additional private placement warrants | $	$ 210,000	$ 210,000
Exercise of underwriter's over-allotment option | Sponsor and the Company's independent directors
Public offering
Additional units purchased by the underwriters in partial exercise of their over-allotment option (in units)		1,050,000
Founder Shares forfeited		525,000
Exercise of underwriter's over-allotment option | Units
Public offering
Price of units issued in public offering (in dollars per share) | $ / shares		$ 10.00
Number of shares of common stock included in each unit	1	1
Number of warrants for each unit issued	0.5	0.5
Number of shares called by each warrant	1	1
Exercise price (in dollars per share) | $ / shares	$ 11.50	$ 11.50
Additional units purchased by the underwriters in partial exercise of their over-allotment option (in units)	1,050,000
Proceeds from sale of additional units | $		$ 10,500,000