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LITIGATION - Additional Information (Details) $ in Millions | Sep. 26, 2017 defendant | Sep. 05, 2017 USD ($)
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Shareholder Derivative Action |  |
Loss Contingencies [Line Items] |  |
Number of defendants | defendant | 4 |
Jeffrey Seabold Matter |  |
Loss Contingencies [Line Items] |  |
Damages sought | $ |  | $ 5

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