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Waltham Lease (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Jun. 30, 2016
Real Estate Properties [Line Items]    
Property, plant and equipment, net $ 495,175 $ 493,163
Waltham Lease [Member]    
Real Estate Properties [Line Items]    
Property, plant and equipment, net 119,134 120,168
Other Liabilities $ 121,933 $ 122,801