RETIREMENT AND DEFERRED COMPENSATION PLANS - Narrative (Details)	9 Months Ended
	Sep. 30, 2021 USD ($)
United States
Changes in the benefit obligations and plan assets
Minimum funding requirements	$ 0
Defined benefit plan, plan assets, contributions by employer	1,000,000.0
Foreign Plans
Changes in the benefit obligations and plan assets
Defined benefit plan, plan assets, contributions by employer	$ 2,800,000