REVENUE RECOGNITION Revenue Recognition - Performance Obligations (Details) - Tech [Member] $ in Thousands	Mar. 31, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Tech-focused revenue, remaining performance obligation	$ 55,529
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Tech-focused revenue, remaining performance obligation	$ 51,737
Tech-focused revenue, expected timing of satisfaction	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Tech-focused revenue, remaining performance obligation	$ 3,764
Tech-focused revenue, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Tech-focused revenue, remaining performance obligation	$ 28
Tech-focused revenue, expected timing of satisfaction	1 year