GOODWILL (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Goodwill [Line Items]
Goodwill impairment charges	$ 0	$ 0
Number of reportable segments \| segment	4
Goodwill	$ 0		$ 0
Calcium [Member]
Goodwill [Line Items]
Goodwill, accumulated impairment losses	$ 252,664

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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