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v3.20.1

SEGMENT INFORMATION (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 segment customer | Dec. 31, 2018 USD ($) customer | Dec. 31, 2017 customer
Revenue from External Customer [Line Items] |  |  |
Number of reportable segments | segment | 1 |  |
Number of major customers for revenue purposes | 0 |  | 0
Maximum percentage consolidated operating revenues from individual major customers (in hundredths) | 10.00% |  | 10.00%
Major Customer 1 [Member] |  |  |
Revenue from External Customer [Line Items] |  |  |
Number of major customers for revenue purposes |  | 1 |
Maximum percentage consolidated operating revenues from individual major customers (in hundredths) |  | 10.00% |
Revenue from major customer | $ |  | $ 81.1 |

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- Definition Revenue, Number of Major Customers + References No definition available. + Details
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- Definition Revenue from major customer + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Details
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