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Fair Value Measurements (Details Textual) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2016 | 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 | 232,044 | $ 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 | 2,217 | 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 | $ 5,585 |
Stock Issued During Period, Shares, New Issues | 237,013 |
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 | $ 7,945 |

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