PENSION, PROFIT SHARING, AND OTHER EMPLOYEE BENEFIT PLANS - Company's pension plan weighted average (Detail)	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	100.00%	100.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	11.60%	10.40%
Mutual Fund
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	88.40%	89.60%