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	Apr. 02, 2022	Dec. 31, 2021
ASSETS
Accounts receivable, net	$ 0.1	$ 0.1
Other current assets	0.2	0.2
Other assets	0.1	0.2
Total assets - discontinued operations	0.4	0.5
LIABILITIES
Accounts payable	0.1	0.3
Accrued expenses	0.1	0.1
Total liabilities	$ 0.2	$ 0.4