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Financing Arrangement - Financing Arrangement Activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Schedule of Joint Ventures [Line Items] |  |  |  |
Interest income (expense) | $ 2,762 | $ (2,181) | $ (7,407) | $ (4,392)
Joint Venture | Financing Arrangement |  |  |  |
Schedule of Joint Ventures [Line Items] |  |  |  |
Distributions of the partner's share of net income | 2,464 | 0 | 4,466 | 0
Distributions in excess of the partner's share of net income | 1,411 | 0 | 3,049 | 0
Adjustment to fair value of financing arrangement obligation | (8,768) | 0 | (4,386) | 0
Interest income (expense) | $ (4,893) | $ 0 | $ 3,129 | $ 0

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- Details
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- Details
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