EARNINGS PER UNIT - Computations of Net Income (Loss) Per Unit (Additional Information) (Details)	3 Months Ended
Mar. 31, 2020 shares	Mar. 31, 2019 shares
Performance Share Awards
Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share computation (in shares)	0	0
Performance Share Awards
Earnings Per Share [Line Items]
Exchange ratio	1
Vesting period	10 years
OCGH Units
Earnings Per Share [Line Items]
Exchange ratio	1
OCGH Issued (in shares)	0	0
OCGH Units \| Performance Share Awards
Earnings Per Share [Line Items]
Vesting period	10 years
OCGH Units \| Performance Share Awards \| Minimum
Earnings Per Share [Line Items]
Vesting period	4 years
OCGH Units \| Performance Share Awards \| Maximum
Earnings Per Share [Line Items]
Vesting period	10 years
Class A Units
Earnings Per Share [Line Items]
Exchange ratio	1

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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