Annual report pursuant to Section 13 and 15(d)

Income Taxes - Loss Before Income Taxes (Details)

v3.8.0.1
Income Taxes - Loss Before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
(Income) loss attributable to common stockholders $ (156,663) $ (127,680) $ 33,545
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests 411,259 394,988 220,660
Loss before income taxes $ 254,596 $ 267,308 $ 254,205