Stockholders' Equity - Additional Information (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
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
Common stock, shares issued (in shares)	30,581,274		30,581,274		30,512,843
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
Restricted Stock
Stockholders Equity Note Disclosure [Line Items]
Antidilutive stock excluded from earning per share (in shares)	0	300,621	17,712	300,621