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Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | $ 0 |  |
Business Combination, Contingent Consideration, Liability | 243,097 |  | $ 347,104
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Other Adjustments | (6,412) |  | 0
Fixed payments [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability | 4,790 |  | 40,370
Common Stock [Member] | Common Class A [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Stock Issued During Period, Value, New Issues | $ 10,458 | $ 0 |
Stock Issued During Period, Shares, New Issues | 691,559 |  |
Share Capital To Be Issued [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Common Stock, Value, To be Issued | $ 2,360 |  |
Common Stock, Shares, To be Issued | 100,000 |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures | $ 0 |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures | 0 |  |
Share Capital To Be Issued [Member] | Common Class A [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Stock Authorized During Period, Value, To be Issued | $ 2,360 |  |
Common Stock, Value, To be Issued | $ 2,360 |  | $ 0
Stock Authorized During Period, Shares, To be Issued | 100,000 |  |
Common Stock, Shares, To be Issued | 100,000 |  | 0
Contingent Consideration, Liability Settlements [Domain] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Stock Issued During Period, Value, New Issues | $ 12,818 |  |

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