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OWNERS' EQUITY - Phantom and Restricted Unit Awards (Detail) - Phantom Unit And Restricted Unit Awards
6 Months Ended
Jun. 30, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Total non-vested at December,31, 2019 (in shares) | shares 559,218
Units issued (in shares) | shares 54,881
Units vested (in shares) | shares (93,750)
Total non-vested at June 30, 2020 (in shares) | shares 520,349
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Total non-vested at December 31, 2019 | $ / shares $ 3.67
Units issued | $ / shares 0.73
Units vested | $ / shares 3.88
Total non-vested at June 30, 2020 | $ / shares $ 3.32