COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | |
---|---|---|
Mar. 31, 2019 |
Mar. 09, 2017 |
|
Maximum exposure of indemnification liability | $ 13.3 | |
Gain on Expiration of Indemnity Liability | 2.2 | |
Indemnification Liabilities | $ 3.2 | |
Groupon Latin America [Member] | ||
Estimated indemnification liability | $ 5.4 |