Net Income (Loss) Per Share (Details) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income (loss) per share.
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,054	2,784
Convertible Notes | Convertible Common Stock
Net income (loss) per share.
Net shares issued	0	0
Minimum stock price to trigger conversion of debt (in dollars per share)	$ 200	$ 200
Dilutive Securities impact on diluted net income (in dollars per share)	$ 0.00	$ 0.00