ACQUISITIONS AND DISCONTINUED OPERATIONS - Wind-Down of Heat Transfer Business - Assets and Liabilities of Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale - SPX Heat Transfer Business - USD ($) $ in Millions	Jul. 01, 2023	Dec. 31, 2022
ASSETS
Cash and equivalents	$ 0.1	$ 0.0
Other current assets	0.3	0.2
Other assets	0.1	0.1
Total assets of DBT	0.5	0.3
LIABILITIES
Accounts payable	0.2	0.1
Accrued expenses	0.1	0.1
Total liabilities	$ 0.3	$ 0.2