EMPLOYEE BENEFIT PLANS - Projected Benefit Obligation and Accumulated Benefit Obligation in Excess of Plan Assets (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 70,179
Accumulated benefit obligation	70,179
Fair value of plan assets	64,200
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	245
Accumulated benefit obligation	245
Fair value of plan assets	$ 0