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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 |  |  |  |  |  |  |  |

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