Immaterial Restatement Of Prior Period Financial Statements - Summary of Revisions to the Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Loss from continuing operations before other income (expense) and income taxes	$ (38,355)	$ (30,293)	$ (34,212)	$ (37,838)	$ (46,458)	$ (28,422)	$ (32,986)	$ (29,981)	(140,698)	(137,847)	(116,284)
Loss from continuing operations before income taxes									(144,594)	(128,607)	(122,693)
Benefit for income taxes from continuing operations									9,208	1,901	21,941
Loss from continuing operations									$ (135,386)	$ (126,706)	$ (100,752)
Loss per common share from continuing operations (in dollar per share)									$ (1.22)	$ (1.23)	$ (1.18)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										$ 109,333	$ 128,367
Loss from continuing operations before other income (expense) and income taxes										(131,177)	(96,660)
Loss from continuing operations before income taxes										(120,010)	(108,026)
Benefit for income taxes from continuing operations										(1)	16,778
Loss from continuing operations										$ (120,011)	$ (91,248)
Loss per common share from continuing operations (in dollar per share)										$ (1.16)	$ (1.07)
Adjustments for Error Correction
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										$ (730)	$ (941)
Loss from continuing operations before other income (expense) and income taxes										(730)	(941)
Loss from continuing operations before income taxes										(730)	(941)
Benefit for income taxes from continuing operations										0	0
Loss from continuing operations										$ (730)	$ (941)
Loss per common share from continuing operations (in dollar per share)										$ (0.01)	$ (0.01)
Reclassification for Discontinued Operations
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										$ (108,603)	$ (127,426)
Loss from continuing operations before other income (expense) and income taxes										(5,940)	(18,683)
Loss from continuing operations before income taxes										(7,867)	(13,726)
Benefit for income taxes from continuing operations										1,902	5,163
Loss from continuing operations										$ (5,965)	$ (8,563)
Loss per common share from continuing operations (in dollar per share)										$ (0.06)	$ (0.10)
Product sales, net
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										$ 0	$ 0
Product sales, net | As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										104,466	116,178
Product sales, net | Adjustments for Error Correction
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										(730)	(941)
Product sales, net | Reclassification for Discontinued Operations
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Total revenues										$ (103,736)	$ (115,237)