Stock-Based Compensation - Summary of Assumptions Used to Determine Fair Value of Performance Based Restricted Stock Units (Detail) - Performance-Based Restricted Stock Units [Member] - Senior Executives [Member] - $ / shares		Jul. 22, 2021	Jul. 18, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price of our common stock		$ 14.75	$ 18.49
Expected volatility of our common stock		54.20%
Risk-free interest rate		0.33%
Dividend yield		3.00%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility of peer companies	[1]	45.70%
Correlation coefficient of peer companies	[1]	0.03
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility of peer companies	[1]	101.50%
Correlation coefficient of peer companies	[1]	0.35

[1] The expected volatility and correlation coefficient of our peer companies for the July 22, 2021, grant date was based on peer companies that were approved by the Compensation Committee of our board of directors as an aggregate benchmark for determining the market-based total shareholder return component. Therefore, we disclosed ranges of the expected volatility and correlation coefficient for the companies that represented this peer group.