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Fair Value Measurements Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | 5 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Change in fair value of contingent consideration, net |  | $ (297) | [1] | $ 0 | [2] | $ 0
Accretion of contingent earnout consideration (included within interest expense) |  | 5,059 | [1] | 0 | [2] | 0
Recurring |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Purchase price contingent consideration |  | 500 |  |  |  |
Purchase price contingent consideration | $ 22,652 | 22,652 |  | 500 |  |
Recurring | Level 3 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Purchase price contingent consideration |  | 500 |  | 0 |  |
Purchase price contingent consideration, additions |  | 18,733 |  | 500 |  |
Change in fair value of contingent consideration, net |  | (297) |  |  |  |
Accretion of contingent earnout consideration (included within interest expense) |  | 5,059 |  |  |  |
Settlements |  | (1,343) |  |  |  |
Purchase price contingent consideration | 22,652 | 22,652 |  | 500 |  | 0
CenStar | Recurring | Level 3 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Purchase price contingent consideration |  | 500 |  | 0 |  |
Purchase price contingent consideration, additions |  | 0 |  | 500 |  |
Change in fair value of contingent consideration, net |  | 843 |  |  |  |
Accretion of contingent earnout consideration (included within interest expense) |  | 0 |  |  |  |
Settlements |  | (1,343) |  |  |  |
Purchase price contingent consideration | 0 | 0 |  | 500 |  | $ 0
Major Earnout And Stock Earnout | Recurring | Level 3 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Purchase price contingent consideration |  | 0 |  |  |  |
Purchase price contingent consideration, additions |  | 13,910 |  |  |  |
Change in fair value of contingent consideration, net |  | (1,140) |  |  |  |
Accretion of contingent earnout consideration (included within interest expense) |  | 4,990 |  |  |  |
Settlements |  | 0 |  |  |  |
Purchase price contingent consideration | 17,760 | 17,760 |  | 0 |  |
Provider Earnout |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Accretion of contingent earnout consideration (included within interest expense) | 100 | 100 |  |  |  |
Provider Earnout | Recurring | Level 3 |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Purchase price contingent consideration |  | 0 |  |  |  |
Purchase price contingent consideration, additions |  | 4,823 |  |  |  |
Change in fair value of contingent consideration, net |  | 0 |  |  |  |
Accretion of contingent earnout consideration (included within interest expense) |  | 69 |  |  |  |
Settlements |  | 0 |  |  |  |
Purchase price contingent consideration | $ 4,892 | $ 4,892 |  | $ 0 |  |
[1] | Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation and Summary of Significant Accounting Policies" and "Acquisitions," respectively, for further discussion.
[2] | Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

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