Income (Loss) Per Share - Schedule of Excluded Weighted-Average Potential Common Shares from Calculations of Diluted Net Income (Loss) Per Common Shares (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common stock shares effect would be anti-dilutive	3	135	173	105
Convertible Preferred Stock (as if Converted to Common Stock)
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common stock shares effect would be anti-dilutive	0	6,353	6,584	6,353
Unvested Performance Share-based Awards [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common stock shares effect would be anti-dilutive			28
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common stock shares effect would be anti-dilutive	138	27	219	14