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Shareholders' Equity - Noncontrolling Interest Activity in Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Class of Stock [Line Items] |  |  |  |
Income (loss) allocated to noncontrolling interest | $ 7,316 | $ 3,109 | $ 10,391 | $ 10,795
Class A Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Income (loss) allocated to noncontrolling interest | (27) | (1,575) | 108 | (3,241)
Series C Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Income (loss) allocated to noncontrolling interest | 0 | 4,698 | 3,027 | 14,094
Series D Convertible Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Income (loss) allocated to noncontrolling interest | 0 | 0 | 133 | 0
Beneficial conversion feature | 7,569 | 0 | 7,569 | 0
Consolidated Subsidiaries With Noncontrolling Interest [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Income (loss) allocated to noncontrolling interest | $ (226) | $ (14) | $ (446) | $ (58)

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