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Basis of Presentation Basis of Presentation (Details) $ / shares in Units, $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Mar. 14, 2019 USD ($) $ / shares shares | Mar. 08, 2019 USD ($) | Dec. 31, 2018 reportable_segment
Segment Reporting Information [Line Items] |  |  |
Number of reportable segments | reportable_segment |  |  | 4
Common Class A | Subsequent Event [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Price per share | $ / shares | $ 3.50 |  |
Kingsdale Partners, LP | Subsequent Event [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Proceeds from sale of business |  | $ 50 |
Common Stock | Common Class A | Subsequent Event [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Class A shares issued | shares | 14,285,714 |  |
Proceeds from sale of Class A shares | $ 50 |  |
Convertible Preference Shares | Series 6 Convertible Preferred Shares [Member] | Subsequent Event [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Series 6 convertible preference shares issued | shares | 50,000 |  |
Proceeds from issuance of Series 6 convertible preference shares | $ 50 |  |

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