Annual report pursuant to Section 13 and 15(d)

Consolidated Financial Statement Detail - Additional Information 5 (Details)

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Consolidated Financial Statement Detail - Additional Information 5 (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]      
Accumulated depreciation $ 0    
Depreciation and amortization expense 1,500,000 $ 1,900,000 $ 2,900,000
Property and equipment related cost 15,900,000    
Accumulated Depreciation and Amortization 15,453,000 $ 33,508,000  
Construction-in-Progress [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment under capital lease 200,000    
Land, Building and Certain Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Accumulated Depreciation and Amortization 13,700,000    
Other Income (Expense), Net [Member]      
Property, Plant and Equipment [Line Items]      
Gain on sale of property and equipment $ 3,500,000