ACQUISITION - Narrative (Details) - SingleHop, LLC - USD ($) $ in Millions		12 Months Ended
Feb. 28, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Payment to acquire business	$ 132.0
Working capital adjustment	$ 0.4
Acquisition related costs		$ 2.9
Customer relationships
Business Acquisition [Line Items]
Weighted average useful life	10 years
Noncompete agreements
Business Acquisition [Line Items]
Weighted average useful life	4 years
Trade names
Business Acquisition [Line Items]
Weighted average useful life	8 years
Technology
Business Acquisition [Line Items]
Weighted average useful life	7 years

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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