INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Line Items]
Decrease in deferred income tax expense from remeasurement of deferred taxes due to change in tax rate (Tax Cuts and Jobs Act)			$ 21.4
Income tax receivable	$ 2.0	$ 1.6
Reduction in uncertain tax positions from change in enacted tax rate	0.0	0.0	1.1
Uncertain tax benefits accrued	2.7	2.7	2.7	$ 4.1
Valuation allowance	0.4	0.7
Net change in total valuation allowance	0.3
Interest and penalties recognized related to uncertain income tax positions	0.3	0.1	$ 0.1
Interest and penalties accrued related to uncertain income tax positions	$ 0.4	$ 0.1
Minimum [Member]
Income Tax Disclosure [Line Items]
Tax years open to examination	2004
Maximum [Member]
Income Tax Disclosure [Line Items]
Tax years open to examination	2019
State Tax Credit [Member]
Income Tax Disclosure [Line Items]
Tax credits	$ 3.9
State and Local Jurisdiction [Member] | Net Operating Loss [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	73.9
Compassionate Care Hospice [Member] | Federal [Member] | Net Operating Loss [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 0.1