RESTRICTED STOCK UNITS, STOCK OPTIONS, AND STOCK APPRECIATION RIGHTS (SARs) - Summary of Stock Option Activity (Detail) - Stock Options [Member] - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Life of award	10 years
Option Activity (shares) [Roll Forward]
Outstanding at beginning of year	110,806
Exercised	0
Expired	(1,500)
Outstanding at end of year	109,306	110,806
Exercisable at end of year	109,306
Options Outstanding, Weighted Average Exercise Price (in USD per share) [Abstract]
Outstanding at beginning of year	$ 22.15
Exercised
Expired	$ 21.40
Outstanding at end of year	22.16	$ 22.15
Exercisable at end of year	$ 22.16
Options, Outstanding, Weighted Average Remaining Contractual Term (in years)	2 years 2 months 3 days
Options, Exercisable, Weighted Average Remaining Contractual Term (in years)	2 years 2 months 3 days
Intrinsic value of exercises in the period (in USD per share)	$ 0.00	$ 0	$ 0
Aggregate Intrinsic Value, Outstanding at end of year	0
Aggregate Intrinsic Value, Exercisable at end of year	0
Outstanding and exercisable at end of year Unamortized Compensation Expense	$ 0
Grants in period	0	0	0