Restricted Stock, Stock Options and Other Stock Plans - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Stock Options [Member]	Jun. 30, 2013 Stock Options [Member]	Jun. 30, 2014 Stock Options [Member]	Jun. 30, 2013 Stock Options [Member]	Jun. 30, 2014 Restricted Stock Awards [Member]	Jun. 30, 2013 Restricted Stock Awards [Member]	Jun. 30, 2014 Restricted Stock Awards [Member]	Jun. 30, 2013 Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued by the company				0	30	0	30	0	0	0	0
Fair value of shares issued					$ 19		$ 19
Vesting period					4 years		4 years
Restricted award settled								8		133
Restricted award settled net during the period								3		41
Amount remitted to tax authorities	4	62
Weighted-average remaining contractual term of unexercised stock options		6 years 8 months 12 days
Unrecognized compensation cost related to stock issuances	$ 498	$ 498	$ 843