Annual report pursuant to Section 13 and 15(d)

SCHEDULE I CONDENSED FINANCIAL INFORMATION OF REGISTRANT - PARENT COMPANY STATEMENTS OF OPERATIONS (Details)

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SCHEDULE I CONDENSED FINANCIAL INFORMATION OF REGISTRANT - PARENT COMPANY STATEMENTS OF OPERATIONS (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Apr. 09, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Condensed Income Statements, Captions [Line Items]                        
Total revenue $ 1,872 $ 799 $ 813 $ 6,801 $ 5,441 $ 0 $ 0 $ 0   $ 10,286 $ 5,441 $ 0
Cost of sales                   6,115 7,565 0
Development expenses                   44,034 59,498 47,146
General and administrative expenses                   81,777 98,874 46,515
Goodwill impairment                   0 77,592 0
Total operating costs and expenses                   138,006 244,008 93,730
Loss on preferred stock exchange feature                   0 (2,209) 3,308
Interest expense                 $ 0 1,574 1,022 0
Income tax benefit (provision)                   190 (185) 166
Parent [Member]                        
Condensed Income Statements, Captions [Line Items]                        
Total revenue                   0 0 0
Cost of sales                   93 15 0
Development expenses                   2,487 320 21
General and administrative expenses                   4,618 594 25,084
Goodwill impairment                   0 77,592 0
Total operating costs and expenses                   7,198 78,521 25,105
Loss on preferred stock exchange feature                   0 0 3,308
Interest expense                   2 0 0
Loss from operations before income taxes and equity in losses of subsidiaries                   (7,200) (78,521) (28,413)
Income tax benefit (provision)                   0 (4) 170
Net loss from operations before equity in losses of subsidiaries                   (7,200) (78,525) (28,243)
Equity in losses of subsidiaries, net of tax                   (118,545) (152,934) (68,412)
Net loss                   $ (125,745) $ (231,459) $ (96,655)