Stock-Based Compensation - Stock Option Activity Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Jun. 29, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Number of Options (in shares)
Outstanding at beginning of year		1,914,000	1,902,000	2,856,125
Granted		80,000	70,000	60,000
Exercised	(814,500)	(195,000)	0	(81,500)
Expired or forfeited		(110,500)	(58,000)	(118,125)
Outstanding at end of year		1,688,500	1,914,000	1,902,000
Exercisable at end of year		1,678,500	1,833,500	1,718,062
Weighted- Average Exercise Price (in dollars per share)
Outstanding at beginning of year		$ 11.38	$ 11.51	$ 14.68
Granted		$ 3.85	$ 3.55	$ 8.16
Exercised		$ 4.16	$ 0.00	$ 4.61
Expired or forfeited		$ 10.93	$ 6.33	$ 18.48
Outstanding at end of year		$ 11.88	$ 11.38	$ 11.51
Exercisable at end of year		$ 11.92	$ 11.48	$ 11.72
Weighted- Average Remaining Contractual Term (in years)
Outstanding at end of year		3 years 9 months 18 days
Exercisable at end of year		3 years 9 months 18 days
Aggregate Intrinsic Value
Outstanding at end of year		$ 1,038
Exercisable at end of year		$ 1,027