Net Income (Loss) Per Share Reconciliations of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020		Jun. 30, 2019
Net income (loss) per share numerator:
Net loss from continuing operations	$ (48,255)		$ (17,138)		$ (57,195)		$ (36,773)
Net (loss) income from discontinued operations	(34)		2,425		31,971		2,137
Net loss	$ (48,289)	$ 23,065	$ (14,713)	$ (19,923)	$ (25,224)	[1]	$ (34,636)	[1]
Weighted Average Number of Shares
Weighted-average shares for basic net income (loss) per share (in shares)	110,831,456		110,209,510		110,731,925		110,057,981
Effect of dilutive securities (in shares)	0		0		0		0
Weighted-average shares for dilutive net income (loss) per share (in shares)	110,831,456		110,209,510		110,731,925		110,057,981
Basic and diluted net income (loss) per share
Continuing operations - common stock (in dollars per share)	$ (0.44)		$ (0.15)		$ (0.52)		$ (0.33)
Discontinued operations - common stock (in dollars per share)	0		0.02		0.29		0.02
Total net income (loss) per share - common stock (in dollars per share)	$ (0.44)		$ (0.13)		$ (0.23)		$ (0.31)

[1] The statements for the six months ended June 30, 2020 and 2019 include the Connected Care Business (see Note 4).