BASIS OF PRESENTATION - Additional Information (Details) $ in Millions	Sep. 30, 2019 USD ($) lease_unit	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 119.3
Cash and cash equivalents, not immediately available for use	4.1		$ 12.6
Operating lease liabilities	$ 127.1
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 138.0
Operating lease liabilities		138.0
Discontinued Operations | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		6.0
Operating lease liabilities		$ 6.0
Buildings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of units in lease | lease_unit	100
Vehicles
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of units in lease | lease_unit	500
Office and Industrial Equipment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of units in lease | lease_unit	450