Earnings Per Share and Equity - Calculations of Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net loss	$ (8,337)	$ (1,065)	$ (3,923)	$ (4,149)
Preferred stock dividends	198		363
Net loss applicable to common stockholders, basic and diluted	$ (8,535)	$ (1,065)	$ (4,286)	$ (4,149)
Weighted average common shares outstanding
Basic and diluted	54,863	54,863	54,863	54,863
Net loss allocated to common stockholders per common share
Basic and diluted	$ (0.16)	$ (0.02)	$ (0.08)	$ (0.08)