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Related Party Transactions - Related Party Expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Related Party Transaction [Line Items] |  |
General and administrative expenses | $ 29,146 | $ 4,819
Majority Shareholder |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | 383 | 3,906
Majority Shareholder | Compensation & Benefits |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | 184 | 1,174
Majority Shareholder | Third party service fees |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | 84 | 700
Majority Shareholder | Stock-based compensation |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | 30 | 551
Majority Shareholder | Facility related expenses |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | 80 | 1,134
Majority Shareholder | Other |  |
Related Party Transaction [Line Items] |  |
General and administrative expenses | $ 5 | $ 347

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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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