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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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Gross number of share options (or share units) granted during the period.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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LONG-TERM INCENTIVE PLAN - Additional Information (Detail)				12 Months Ended
	Dec. 18, 2019 Installment $ / shares shares	Jun. 27, 2019 USD ($) shares	Apr. 15, 2019 Installment shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($)	Mar. 27, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting commencing date			Jul. 15, 2019
Share-based compensation arrangement by share-based payment award, award vesting period			4 years
Share-based compensation arrangement by share-based payment award,vesting period grant date			3 months
Share-based Compensation, remaining weighted average period				3 years
Unrecognized compensation cost related to unvested stock options \| $				$ 1,900,000
Threshold Performance Condition, For Year 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			25.00%
Target Performance Condition, For Year 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			50.00%
Maximum Performance Condition, For Year 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			100.00%
Phantom Units Subject to Time-based Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments \| Installment			3
Share-based compensation arrangement by share-based payment award, award vesting commencing date			Apr. 03, 2020
Restricted Units \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in Period			275,000
Phantom and Restricted Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in Period		975,142
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period		1,351,493
Share-based compensation arrangement by share-based payment award, equity instruments other than options, settled in period		376,351
Unit-based compensation expense recognized \| $		$ 2,200,000
Phantom Unit And Restricted Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in Period				1,381,572
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period				1,819,131
Share-based compensation arrangement by share-based payment award, equity instruments other than options, settled in period				32,861
Unit-based compensation expense recognized \| $				$ 3,600,000	$ 2,400,000
Unamortised compensation cost related to unvested restricted stock awards \| $				$ 500,000
Share-based Compensation, remaining weighted average period				2 years 9 months
Non-qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unit-based compensation expense recognized \| $				$ 0	$ 0
Share-based compensation, options granted				5,500,000
Non-qualified Stock Options \| Senior Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equal annual installments \| Installment	3
Share-based compensation, options granted	5,500,000
Share-based compensation arrangements by share-based payment award, options exercise price \| $ / shares	$ 1.20
Share-based compensation arrangement by share-based payment award, options vesting commencing date	Dec. 18, 2020
Share-based compensation, expected weighted-average service period	3 years
Non-qualified Stock Options \| Senior Management \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, option awards expiration	10 years
2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-Term Incentive Plan, common units permitted for grant (in shares)	8,500,000					4,000,000
Amended and Restated 2019 Long-Term Incentive Plan \| Phantom Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in Period		238,554	1,015,047
Amended and Restated 2019 Long-Term Incentive Plan \| Phantom Units Subject to Time-based Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in Period			494,421
Amended and Restated 2019 Long-Term Incentive Plan \| Phantom Units Subject to Performance-based Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in Period			520,626