EMPLOYEE AND DIRECTOR BENEFIT PLANS - Narrative (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Plan shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($)
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of deferred compensation plans | Plan	2
Employees contribution	100.00%
Employer contribution matching percent	100.00%
Percentage of employee's gross pay	6.00%
Vesting period	5 years
Company 401k expense	$ 1,800	$ 2,000	$ 1,200
Profit sharing contribution		500
Deferred compensation plan | Key Management Employees | Other liabilities
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Liability for cumulative employee contributions and earnings	527	152
Non elective contributions to selected recipients	$ 175	$ 700
Deferred compensation plan | Director
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Maximum percentage to defer the compensation under the plan	100.00%
Number of shares purchased under deferred compensation plan | shares	3,889	4,427
Value of shares purchased under deferred compensation plan	$ 213	$ 229
Value of shares distributed under director plan	$ 32	$ 473
Number of shares distributed under director plan | shares	600	9,900
Deferred compensation liability offsetting equity component	$ 831	$ 636
Deferred compensation liability offsetting equity component (in shares) | shares	26,070	22,853
Minimum | Deferred compensation plan | Key Management Employees | Other liabilities
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vesting period from date of grant	4 years
Maximum | Deferred compensation plan | Key Management Employees | Other liabilities
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vesting period from date of grant	5 years