Earnings per Share (Detail)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	6,000		18,000		8,667		18,667
Dilutive securities	4,000		0		1,333		1,333
Potential dilutive securities	229	[1]	0	[1]	0	[1]	0	[1]
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted stock	301,598		699,612
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted stock units	476,149		413,764

[1] Anti-dilutive shares related to stock options totaled 6,000 and 18,000 for the quarters ended September 30, 2014 and 2013, respectively, and 8,667 and 18,667 for the year to date periods ended September 30, 2014 and 2013, respectively. There were dilutive shares related to stock options totaling 4,000 and 0 for the quarters ended September 30, 2014 and 2013, respectively, and 1,333 and 1,333 for the year to date periods ended September 30, 2014 and 2013, respectively. The dilutive shares resulted in potential dilutive securities of 229 and 0 for the quarter and year to date periods ended September 30, 2014 and potential dilutive securities of 0 and 0 for the quarter and year to date periods ended September 30, 2013, respectively.