Equity - Additional Information (Details) - $ / shares	48 Months Ended
	Dec. 31, 2020	Jul. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common stock, issued (in shares)	35,928,000		35,772,000
Common stock, outstanding (in shares)	35,928,000		35,772,000
Common stock, par value (in dollars per share)	$ 0.001		$ 0.001
Options outstanding (in shares)	91,000		0
Shares authorized (in shares)	250,000,000		250,000,000
Number of securities issued for each warrant (in shares)	1
Restricted Stock
Class of Stock [Line Items]
Nonvested (in shares)	114,000		233,000	365,000
Performance Share Units
Class of Stock [Line Items]
Nonvested (in shares)	205,000		92,000	111,000
Series A Warrants
Class of Stock [Line Items]
Common stock issued for general unsecured claims (in shares)	4,700,000
Exercise price of warrants (in usd per share)	$ 41.34
Series B Warrants
Class of Stock [Line Items]
Common stock issued for general unsecured claims (in shares)	2,000,000.0
Exercise price of warrants (in usd per share)	$ 42.03
The Tax Benefits Preservation Plan
Class of Stock [Line Items]
Common stock, par value (in dollars per share)		$ 0.001
Number of rights per outstanding share of common stock		1
Preferred stock, par value (in dollars per share)		$ 0.001
The Tax Benefits Preservation Plan | Preferred Stock
Class of Stock [Line Items]
Exercise price of warrants (in usd per share)		$ 5.00
Class of warrant or right, fractional number of securities called by each warrant or right (in shares)		0.001