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BASIS OF PRESENTATION - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
May 31, 2018 | Jun. 30, 2019 | Jan. 01, 2019
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Lease liabilities |  | $ 107,645 |
ROU assets |  | $ 97,783 |
Accounting Standards Update 2016-02 |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Lease liabilities |  |  | $ 76,400
ROU assets |  |  | $ 67,300
Public Offering |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Stock issued during the period (in shares) | 6,000,000.0 |  |
Stock issued during the period, value | $ 349,600 |  |

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