ACQUISITIONS Acquisitions Textuals (Details) - Rheinhutte Pumpen Group [Member]	3 Months Ended	12 Months Ended
	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Apr. 30, 2019
Business Acquisition, Name of Acquired Entity	Rheinhütte Pumpen Group
Payments to Acquire Businesses, Net of Cash Acquired	$ 81
Revenue of Acquired Entity for Last Annual Period		$ 61.5
Number of Employees at Entity to be Acquired	430
Number of Manufacturing Locations of Acquired Entity	3