Convertible Preference Shares (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Mar. 07, 2017	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Preferred Units [Line Items]
Stock Issued During Period, Shares, Convertible Preferred Shares		90,220,000
Series 4 Convertible Preferred Stock [Domain]
Preferred Units [Line Items]
Stock Issued During Period, Shares, Convertible Preferred Shares		95,000
Proceeds from issuance of convertible preference shares		$ 95,000	$ 0
Convertible Preferred Stock [Member] | Series 4 Convertible Preferred Stock [Domain]
Preferred Units [Line Items]
Stock Issued During Period, Shares, Convertible Preferred Shares	95,000	95,000		0
Proceeds from issuance of convertible preference shares	$ 95,000
Preferred Stock, Value, Issued	$ 90,220	$ 90,220
Preferred Stock, Liquidation Preference Per Share	$ 1,000
Preferred Stock, Conversion Price, Preference Per Share	$ 10.00
Preferred Stock, Accretion Percentage, Preference Per Share	8.00%
Preferred Stock, Accretion Rate, Preference Per Share		$ 6.67
Accretion on convertible preferred shares		$ (507)	$ 0
Preferred Stock, Liquidation Preference, Value		$ 95,507		$ 0
Preferred Stock, Conversion Basis, Common Stock Class A Closing Trade Price		125.00%
Preferred Stock, Liquidation Preference Percentage Rate, Change of Control of the Company		7.00%