DEBT (Schedule of Long Term Debt) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total debt	$ 1,057,000,000
Current maturities of long-term debt	0	$ (82,000,000)
Less: Deferred financing costs	(1,730,000)
Long-term debt, net of deferred financing costs	1,055,270,000	$ 973,129,000
Term Credit Agreement borrowings due 2024 at a variable interest rate of 3.0% at March 31, 2020
Debt Instrument [Line Items]
Total debt	$ 350,000,000
Effective interest rate	3.00%
Debt instrument, interest rate during period	3.30%
Term Credit Agreement borrowings due 2024 at a variable interest rate of 3.0% at March 31, 2020 | LIBOR
Debt Instrument [Line Items]
Basis points on periodic interest rate	1.625%
Senior Notes due 2022 at a fixed interest rate of 3.75%
Debt Instrument [Line Items]
Total debt	$ 325,000,000
Fixed interest rate	3.75%
Incremental Term Loan Agreement borrowings due 2026 at a variable interest rate of 3.5% at March 31, 2020 (b)
Debt Instrument [Line Items]
Total debt	$ 300,000,000
Effective interest rate	3.50%
Debt instrument, interest rate during period	2.80%
Incremental Term Loan Agreement borrowings due 2026 at a variable interest rate of 3.5% at March 31, 2020 (b) | LIBOR
Debt Instrument [Line Items]
Basis points on periodic interest rate	1.90%
Revolving Credit Facility borrowings due 2020 at an average variable interest rate of 3.5% at March 31, 2020
Debt Instrument [Line Items]
Total debt	$ 82,000,000
Effective interest rate	3.50%