Stock and Incentive Compensation Plans - Summary of Stock Option Transactions Pursuant to Company's Stock Incentive Plans (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options Outstanding, Shares, beginning balance	105,000	187,000	205,000
Granted, Shares	0	0	0
Forfeited, Shares	(43,000)	(82,000)	(18,000)
Options Outstanding, Shares, ending balance	62,000	105,000	187,000
Exercisable, Shares	62,000
Options Outstanding, Weighted Average Exercise Price Per Share, beginning balance	$ 9.23	$ 8.40	$ 8.46
Forfeited, Weighted Average Exercise Price Per Share	9.89	7.34	9.01
Options Outstanding, Weighted Average Exercise Price Per Share, ending balance	8.78	$ 9.23	$ 8.40
Exercisable, Weighted Average Exercise Price Per Share	$ 8.78
Options Outstanding, Average Remaining Contractual Term (Years)	1 month 6 days
Exercisable, Average Remaining Contractual Term (Years)	1 month 6 days
Options Outstanding, Average Remaining Vesting Period (months)	0 months