INCOME TAXES (Deferred tax assets and liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Accrued expenses and reserves	$ 15.1	$ 14.9
Compensation and employee benefits	17.4	15.6
Net operating losses, tax credit carryforwards, and other	13.2	14.0
Lease liability	14.7	12.6
Research and development expenditures	7.0	3.3
Lease liability	0.1	0.0
Valuation allowance on state and foreign deferred tax	(4.1)	(4.9)
Total deferred tax assets	63.4	55.5
Deferred tax liabilities:
Accelerated depreciation on fixed assets	17.7	14.5
Amortization of intangibles	51.3	51.1
Lease right-of-use asset, net	14.7	12.6
Other items	0.4	0.3
Total deferred tax liabilities	84.1	78.5
Net deferred tax liabilities	$ (20.7)	$ (23.0)