Quarterly report pursuant to Section 13 or 15(d)

Goodwill (Details)

v3.10.0.1
Goodwill (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2018
USD ($)
reporting_unit
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]          
Number of reporting units | reporting_unit     1    
Stockholders’ (deficit) equity $ (1,375,375,000)   $ (1,375,375,000)   $ (1,523,874,000)
Goodwill 2,289,985,000   2,289,985,000   $ 2,286,582,000
Goodwill acquired during period 3,403,000        
Impairment losses for goodwill 0 $ 0 0 $ 0  
Accumulated impairment of goodwill since the merger $ 4,766,190,000   $ 4,766,190,000