LONG-TERM AND SHORT-TERM FINANCING ARRANGEMENTS (Details) - USD ($) $ in Millions	Apr. 14, 2020	Oct. 31, 2020	Mar. 31, 2020	Jan. 18, 2019	Jan. 17, 2019	Jul. 27, 2015
Senior Notes due 2023
Long-term and Short-term Financing Arrangements
Senior Notes, Total						$ 200.0
Debt Instrument, Interest Rate, Stated Percentage						6.25%
Senior Notes, Repurchase Price, Change of Control		101.00%
Revolving Credit Facility
Long-term and Short-term Financing Arrangements
Long-term Line of Credit, Total			$ 440.0
Revolving Credit Facility | Fourth Amendment to Fourth Amended and Restated Credit Agreement
Long-term and Short-term Financing Arrangements
Line of Credit Facility, Maximum Borrowing Capacity	$ 600.0			$ 500.0	$ 600.0
Line of Credit Facility, Option to Increase, Amount	150.0			$ 250.0
Line of Credit Facility, Additional Maximum Borrowing Capacity	$ 100.0
Debt Instrument, Increase in Basis Spread on Variable Rate	0.75%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Increase	0.05%
Line of Credit Facility, Excess Availability, Percent to Trigger Debt Restrictions		10.00%
Line of Credit Facility, Excess Availability to Trigger Debt Restrictions		$ 40.0
Line of Credit Facility, Fixed Charge Coverage Ratio to Trigger Debt Restrictions		1.0
Long-term Line of Credit, Total		$ 300.0
Letters of Credit Outstanding, Amount		11.2
Line of Credit Facility, Remaining Borrowing Capacity		$ 170.6
Revolving Credit Facility | Fourth Amendment to Fourth Amended and Restated Credit Agreement | Minimum
Long-term and Short-term Financing Arrangements
Debt Instrument, Basis Spread on Variable Rate	1.00%