Stockholders' Equity - Additional Information (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 23, 2020	Dec. 31, 2019
Stockholders Equity Note Disclosure [Line Items]
Common stock, shares authorized (in shares)	60,000,000		60,000,000			60,000,000
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01		$ 0.01	$ 0.01
Common stock, shares issued (in shares)	30,985,669		30,985,669			30,801,255
Common stock, shares outstanding (in shares)	30,985,669		30,985,669			30,801,255
Preferred stock, shares authorized (in shares)	5,000,000		5,000,000			5,000,000
Preferred stock, par value (in dollars per share)	$ 0.01		$ 0.01			$ 0.01
Preferred stock, shares outstanding (in shares)	0		0			0
Number of rights distributed for each share of common stock held					1
Threshold percentage of beneficial ownership required to exercise rights					10.00%
Threshold percentage of beneficial ownership required to exercise rights for certain passive investors					15.00%
Restricted Stock
Stockholders Equity Note Disclosure [Line Items]
Antidilutive stock excluded from earning per share (in shares)	282,000	0	256,000	18,000