Commitments and Contingencies- Commitments as a Result of Acquisitions (Details) $ in Thousands  | 
 Mar. 31, 2016  
USD ($) 
 | 
 Jun. 30, 2014  
GBP (£) 
 | 
|---|---|---|
| EEX | ||
| Loss Contingencies [Line Items] | ||
| Business combination, contingent consideration arrangements, range of outcomes, value, high | $ 6,466 | £ 4,500,000 | 
| X | ||||||||||
- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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| X | ||||||||||
- Details 
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