Annual report pursuant to Section 13 and 15(d)

Income Taxes - (Details Textual)

v3.7.0.1
Income Taxes - (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]              
Impairment of goodwill $ 175,028,000 $ 0 $ 0 $ 0 $ 0 $ 175,028,000 $ 0
Impairment of goodwill, not tax deductible           91,961,000  
Tax impact related to the non-deductible portion of the goodwill impairment change           32,186,000  
Goodwill impairment tax impact         (2,876,000) 35,062,000 0
Deferred tax asset reflecting federal and state net operating losses 243,865,000       346,768,000 243,865,000  
Federal net operating losses         $ 887,228,000    
Expiration date for federal net operating losses         2028    
Unrecognized tax benefits that would affect the effective tax rate $ 0       $ 0 $ 0 $ 0
Period for unrecognized tax benefits to increase or decrease         12 months    
Interest and penalties related to unrecognized tax benefits         $ 0    
Deferred tax liability related to investments in foreign subsidiaries         $ 0