COMPENSATION PLANS - Options Outstanding and Exercisable (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Exercise Price 3
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	75
Shares Outstanding, Remaining Contractual Life (in years)	3 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 12.30
Shares Exercisable (in shares)	75
Shares Exercisable Price (in dollars per share) | $ / shares	$ 12.30
Exercise Price 4
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	121
Shares Outstanding, Remaining Contractual Life (in years)	5 years 9 months 18 days
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 40.95
Shares Exercisable (in shares)	91
Shares Exercisable Price (in dollars per share) | $ / shares	$ 40.95
Exercise Price 5
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	340
Shares Outstanding, Remaining Contractual Life (in years)	6 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 53.83
Shares Exercisable (in shares)	170
Shares Exercisable Price (in dollars per share) | $ / shares	$ 53.83
The 2013 Plan | Exercise Price 1 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	18
Shares Outstanding, Remaining Contractual Life (in years)	3 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 12.30
Shares Exercisable (in shares)	18
Shares Exercisable Price (in dollars per share) | $ / shares	$ 12.30
The 2013 Plan | Exercise Price 2 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	19
Shares Outstanding, Remaining Contractual Life (in years)	3 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 14.75
Shares Exercisable (in shares)	19
Shares Exercisable Price (in dollars per share) | $ / shares	$ 14.75
The 2013 Plan | Exercise Price 3 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	19
Shares Outstanding, Remaining Contractual Life (in years)	3 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 17.71
Shares Exercisable (in shares)	19
Shares Exercisable Price (in dollars per share) | $ / shares	$ 17.71
The 2013 Plan | Exercise Price 4 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	19
Shares Outstanding, Remaining Contractual Life (in years)	3 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 21.25
Shares Exercisable (in shares)	19
Shares Exercisable Price (in dollars per share) | $ / shares	$ 21.25
The 2016 Plan | Exercise Price 1 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	30
Shares Outstanding, Remaining Contractual Life (in years)	5 years 9 months 18 days
Shares Exercisable (in shares)	22
Shares Exercisable Price (in dollars per share) | $ / shares	$ 40.95
The 2016 Plan | Exercise Price 2 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	30
Shares Outstanding, Remaining Contractual Life (in years)	5 years 9 months 18 days
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 47.51
Shares Exercisable (in shares)	23
Shares Exercisable Price (in dollars per share) | $ / shares	$ 47.51
The 2016 Plan | Exercise Price 3 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	30
Shares Outstanding, Remaining Contractual Life (in years)	5 years 9 months 18 days
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 55.11
Shares Exercisable (in shares)	22
Shares Exercisable Price (in dollars per share) | $ / shares	$ 55.11
The 2016 Plan | Exercise Price 4 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	30
Shares Outstanding, Remaining Contractual Life (in years)	5 years 9 months 18 days
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 63.93
Shares Exercisable (in shares)	23
Shares Exercisable Price (in dollars per share) | $ / shares	$ 63.93
The 2017 Plan | Exercise Price 1 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	85
Shares Outstanding, Remaining Contractual Life (in years)	6 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 53.83
Shares Exercisable (in shares)	42
Shares Exercisable Price (in dollars per share) | $ / shares	$ 53.83
The 2017 Plan | Exercise Price 2 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	85
Shares Outstanding, Remaining Contractual Life (in years)	6 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 60.03
Shares Exercisable (in shares)	43
Shares Exercisable Price (in dollars per share) | $ / shares	$ 60.03
The 2017 Plan | Exercise Price 3 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	85
Shares Outstanding, Remaining Contractual Life (in years)	6 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 66.93
Shares Exercisable (in shares)	42
Shares Exercisable Price (in dollars per share) | $ / shares	$ 66.93
The 2017 Plan | Exercise Price 4 | Stock Appreciation Rights (SARs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Shares Outstanding (in shares)	85
Shares Outstanding, Remaining Contractual Life (in years)	6 years
Shares Outstanding, Exercise Price (in dollars per share) | $ / shares	$ 74.63
Shares Exercisable (in shares)	43
Shares Exercisable Price (in dollars per share) | $ / shares	$ 74.63