EMPLOYEE BENEFIT PLANS - General Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019 USD ($) plan	Dec. 31, 2018 USD ($) plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected future employer contributions, next fiscal year | $		$ 4.0
Discount rate		2.00%	2.80%
Expected long-term return on plan assets		3.30%	4.70%
Accumulated benefit obligation | $		$ 92.4	$ 84.6
Forecasted
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets	2.90%
Forecasted | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets	5.30%
Forecasted | Debt securities
Defined Benefit Plan Disclosure [Line Items]
Expected long-term return on plan assets	2.10%
LIBOR | Global Absolute Return Bond Fund
Defined Benefit Plan Disclosure [Line Items]
Target return on asset category		3.00%
Foreign plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, number of plans | plan			2
NORWAY
Defined Benefit Plan Disclosure [Line Items]
Concentration risk			1.00%
UNITED KINGDOM
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, number of plans | plan		1