Stockholders' Equity - Additional Information (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
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)	29,876,953		29,876,953		29,871,354
Common stock, shares outstanding (in shares)	29,876,953		29,876,953		29,871,354
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	0	0	422,000