PENSION AND POST-RETIREMENT BENEFITS - Narrative (Details)		1 Months Ended		12 Months Ended
	Dec. 31, 2012 plan	Jan. 31, 2020 USD ($)	Jan. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of qualified defined benefit pension plans | plan	2
Net periodic benefit (income) costs				$ 7,200,000	$ 2,600,000
Expected recognition of net actuarial loss in next fiscal year				10,800,000
Expected recognition of prior service cost in next fiscal year				400,000
Estimated contributions in next fiscal year				18,000,000
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic benefit (income) costs				6,600,000	1,800,000
Employer contributions				11,400,000	8,000,000.0
Other Post-Retirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic benefit (income) costs				600,000	800,000
Employer contributions				700,000	800,000
Savings Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company matching contribution per dollar contributed				$ 0.50
Percent of eligible compensation Company matches				6.00%
Employer matching cash contributions				$ 5,500,000	5,300,000
Employer discretionary profit sharing contributions				7,200,000	6,800,000
Employer discretionary profit sharing contributions paid			$ 1,500,000	$ 5,600,000	$ 5,300,000
Employer discretionary profit sharing contributions, percentage of employee gross pay				3.00%	3.00%
Savings Plan | Subsequent Event
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer discretionary profit sharing contributions paid		$ 1,600,000
Savings Plan | Non Highly Compensated Participants
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employee maximum contribution as a percent of eligible compensation				25.00%
Savings Plan | Highly Compensated Participants
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employee maximum contribution as a percent of eligible compensation				10.00%
Pension Plan Liabilities Retained by Affiliates
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Receivables from affiliates				$ 2,300,000	$ 2,400,000
U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected long-term return on plan assets (as a percent)				6.00%	6.00%
International Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected long-term return on plan assets (as a percent)				4.86%	4.95%