COMMITMENTS AND CONTINGENCIES - Commercial Commitments Outstanding (Details) - Purchase obligations $ in Thousands	Dec. 31, 2018 USD ($)
Other Commitments
Less than 1 Year	$ 3,004
1 to 3 years	0
Total	$ 3,004

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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