Share Capital (Details Textual) $ / shares in Units, $ in Thousands			3 Months Ended	6 Months Ended		9 Months Ended
	Mar. 14, 2019 USD ($) $ / shares shares	Mar. 07, 2017 USD ($) $ / shares shares	Jun. 30, 2019 USD ($) vote shares	Jun. 30, 2019 USD ($) vote $ / shares shares	Jun. 30, 2018 USD ($)	Sep. 30, 2018	Dec. 31, 2018 shares	Mar. 31, 2018 shares	Dec. 31, 2017 shares
Share Capital [Line Items]
Issuance of common and convertible preference shares			$ 991	$ 98,620
Expenses for convertible preference shares					$ (97)
Series 4 Convertible Preferred Stock
Share Capital [Line Items]
Proceeds from issuance of common and convertible preference shares, net of issuance costs				98,620
Preferred Stock
Share Capital [Line Items]
Proceeds from issuance of common and convertible preference shares, net of issuance costs	$ 98,620
Issuance of common and convertible preference shares			$ 629	$ 62,623
Shares outstanding (shares) | shares			145,000,000	145,000,000			95,000,000	95,000,000
Preferred Stock | Series 4 Convertible Preferred Stock
Share Capital [Line Items]
Proceeds from issuance of common and convertible preference shares, net of issuance costs		$ 95,000
Preferred Stock, Liquidation Preference Per Share | $ / shares		$ 1,000
Preferred Stock, Conversion Price Per Preference Share | $ / shares	$ 7.42	$ 10.00
Preferred Stock, Accretion Percentage, Preference		8.00%
Preferred Stock, Accretion Rate, Preference Per Share | $ / shares				$ 7.85
Preferred Stock, Accretion of Redemption Discount				$ 4,432
Preferred Stock, Liquidation Preference, Value			$ 114,139	$ 114,139
Shares outstanding (shares) | shares			145,000	145,000					95,000
Expenses for convertible preference shares					$ (97)
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%
Stock issued during period, convertible preferred (shares) | shares		95,000
Preferred Stock | Series 6 Convertible Preferred Stock
Share Capital [Line Items]
Stock Issued During Period, Shares, Issued For Services, Convertible Preferred Shares | shares	50,000,000
Proceeds from issuance of common and convertible preference shares, net of issuance costs	$ 50,000
Preferred Stock, Liquidation Preference Per Share | $ / shares	$ 1,000
Preferred Stock, Conversion Price Per Preference Share | $ / shares	$ 5.00
Preferred Stock, Accretion Percentage, Preference	8.00%
Preferred Stock, Convertible Preference Shares, Accretion Period	5 years
Preferred Stock, Accretion of Redemption Discount				$ 1,193
Preferred Stock, Liquidation Preference, Value			$ 51,193	$ 51,193
Shares outstanding (shares) | shares			50,000	50,000
Preferred Stock, Convertible Preference Shares, Convertible at Company's Option, Term	2 years
Preferred Stock, Conversion Basis, Common Stock Class A Closing Trade Price	125.00%
Preferred Stock, Dividend Rate, Percentage	7.00%
Additional Paid-in Capital
Share Capital [Line Items]
Issuance of common and convertible preference shares	$ 35,997		$ 362	$ 35,997
Common Stock | Common Class A
Share Capital [Line Items]
Stock Issued During Period, Shares, Issued for Services | shares	14,285,714
Proceeds from Issuance of Common Stock	$ 50,000
Shares outstanding (shares) | shares			71,943,994	71,943,994			57,517,568
Common stock, voting rights, number of votes per share | vote			1	1
Common Stock | Common Class B
Share Capital [Line Items]
Shares outstanding (shares) | shares			3,749	3,749			3,755		3,755
Common stock, voting rights, number of votes per share | vote			20	20
Contingent Consideration, Liability Settlements [Domain] | Preferred Stock | Series 4 Convertible Preferred Stock
Share Capital [Line Items]
Issuance of common and convertible preference shares	$ 62,623