Earnings (Loss) Per Share - Additional Information (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 09, 2020
Earnings Per Share [Line Items]
Unvested shares and stock units	0	0	876,000
Common stock, shares issued	50,192,000	33,715,000
UST Credit Agreement
Earnings Per Share [Line Items]
Common stock, shares issued	15,943,753			15,943,753