Organization and Business Activities - IPO (Details) - USD ($) $ / shares in Units, $ in Millions	Sep. 30, 2015	Sep. 30, 2015	Sep. 23, 2015
IPO
Number of common shares represented by each ADS share			0.1
IPO, including Over-Allotment Option
IPO
For aggregate number of ADS shares issued, the aggregate number of common shares represented	1,035,000
IPO, including Over-Allotment Option | ADS
IPO
Number of shares sold	10,350,000
Gross proceeds from initial public offering	$ 106.1
Net proceeds from sale of shares, after deducting underwriting fees and offering expenses	$ 92.4
IPO
IPO
For aggregate number of ADS shares issued, the aggregate number of common shares represented			900,000
IPO | ADS
IPO
Number of shares sold			9,000,000
Shares issued price per share			$ 10.25
Over-Allotment Option
IPO
For aggregate number of ADS shares issued, the aggregate number of common shares represented		135,000
Over-Allotment Option | ADS
IPO
Number of shares sold		1,350,000
Shares issued price per share	$ 10.25	$ 10.25