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Summary of Significant Accounting Policies - Narrative (Details) | 3 Months Ended
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Mar. 31, 2017 joint_venture
Variable Interest Entity [Line Items] |
Number of joint ventures consolidated (in joint ventures) | 4
Primary Beneficiary |
Variable Interest Entity [Line Items] |
Number of joint ventures consolidated (in joint ventures) | 3
Not Primary Beneficiary |
Variable Interest Entity [Line Items] |
Number of joint ventures consolidated (in joint ventures) | 1

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- Details
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- Details
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