Share Capital - Series A Preferred Shares - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Aug. 14, 2014	Feb. 28, 2014	Dec. 31, 2014	Dec. 31, 2015	Sep. 30, 2015	Sep. 28, 2015
Class of Stock [Line Items]
Notes payable, related parties		$ 9,602	$ 9,602
Notes payable convert to shares		1,515,596
Minimum number of shares to be held to receive right to purchase new securities	1,212,477
Percentage of voting Right	50.00%
Preferred stock, aggregate liquidation preference				$ 10		$ 10
Preferred stock, par value
Series A Preferred Shares [Member]
Class of Stock [Line Items]
Notes payable convert to shares		2,365,139
Share issued for conversion	3,901,348
Preferred stock liquidation preference, per share					$ 0.0024743
Aggregate preferred stock liquidation preference, per share					$ 10
Series A Preferred Shares [Member] | Singapore [Member]
Class of Stock [Line Items]
Preferred stock, par value
Preferred stock, shares authorized				0
Series B Preferred Shares [Member]
Class of Stock [Line Items]
Preferred stock, voting rights	56.00%
Preferred stock liquidation preference, per share				$ 12.37