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Asset Held for Sale and Disposal (Details) - USD ($)
$ in Thousands
Dec. 15, 2017
Mar. 31, 2018
Sep. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Assets held for sale   $ 1,027 $ 2,524
Alliance Building and Machinery      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Assets held for sale   $ 1,027 $ 2,524
Disposal Group, Held-for-sale | Cork, Ireland and Alliance building and machinery and equipment      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Cash proceeds from sale of Cork, Ireland and Alliance building $ 3,078    
Gain on disposal of Cork, Ireland and Alliance building 1,545    
Cash proceeds, net of legal and professional fees $ 2,447