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Geographical Information Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
segment
Jun. 30, 2014
USD ($)
Oct. 22, 2014
USD ($)
Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Number of reporting segments | segment       1      
Percentage of long-lived assets located in the United States 35.00%     35.00%     47.00%
Revision in estimated cash flows   $ (2,900)   $ (2,879)      
Asset retirement obligation, revision in estimated cash flows $ 0 800 $ 0 $ 845 $ 0    
Leasehold Improvements              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Decrease in property, plant, and equipment   $ 2,100          
Customer Concentration Risk | Sales Revenue, Segment              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Revenue by customer, percentage 45.00%   28.00% 62.00% 29.00%    
Digital Products Business              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Asset purchase agreement, selling price           $ 17,500