DISCONTINUED OPERATIONS - Summary of Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Millions		12 Months Ended
	Jun. 03, 2020	Dec. 31, 2020	Dec. 31, 2019
Assets:
Total current assets			$ 950.8
Liabilities:
Total current liabilities			361.5
ChampionX | Discontinued Operations, Disposed of By Sale
Assets:
Total assets		$ 0.0
Liabilities:
Total liabilities		0.0
Term of post-separation agreement	18 months
Amount billed for transition services		14.3
Period of time post-separation that the entity may transfer or receive certain products	36 months
Post-separation sales		$ 99.7
ChampionX | Discontinued Operations, Held-for-sale
Assets:
Cash and cash equivalents			67.6
Accounts receivable, net			414.5
Inventories			424.0
Other current assets			44.7
Total current assets			950.8
Property, plant and equipment, net			726.6
Goodwill			1,682.6
Other intangible assets, net			745.0
Operating lease assets			110.8
Other assets			67.8
Total assets			4,283.6
Liabilities:
Short-term debt			0.1
Accounts payable			209.0
Compensation and benefits			33.8
Income taxes			5.9
Other current liabilities			112.7
Total current liabilities			361.5
Long-term debt			0.4
Postretirement health care and pension benefits			3.6
Deferred income taxes			203.1
Operating lease liabilities			79.2
Other liabilities			15.8
Total liabilities			$ 663.6