The total fair value of unvested phantom units at end of period.

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Share based compensation arrangement by share based payment award percentage of vesting maximum.

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No definition available.

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The number in years which denotes the term of the stock compensation plan under which the approved maximum number of shares can be granted.

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Amount of commitment made to pay deferred cash remuneration.

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Commitment made to pay deferred cash remuneration expressed as a percentage of the individual's base salary.

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Amount of distribution made to individual in accordance with deferred compensation arrangement.

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- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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 weighted average fair value at grant date for nonvested equity-based awards issued 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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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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No definition available.

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The highest quantity of shares an employee can purchase under the plan per period.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Percentage of vesting of share-based compensation awards.

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- Definition

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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Stock Based Compensation - Additional Information (Detail) - Amended and Restated 2014 Omnibus Incentive Plan - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted to any single participant in any calendar year		100,000
Shares available for issuance under the plan		481,883
Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Cash awards		$ 3,034,000
Deferred compensation payment		$ 526,000
Deferred compensation, percentage		76.00%
Executive Officer \| Scenario, Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation payment	$ 708,000
Deferred compensation, percentage	61.00%
Executive Officer \| Beginning January 1, 2015 through December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		200.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash-based award paid to a single participant in any calendar year		$ 5,000
Aggregate number of common stock for issuance under the plan		1,450,000
Period of years for which the 1,450,000 shares can be granted over		5 years
Minimum \| Executive Officer \| Beginning January 1, 2015 through December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		0.00%
Employee Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term Period		10 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Unrecognized compensation expense, net		$ 3,644,000
Unrecognized compensation expense, net, weighted average period		1 year 7 months 6 days
Weighted average grant date fair value		$ 12.16	$ 10.30
Total fair value of restricted stock vested		$ 1,567,000	$ 2,023,000
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Units granted		214,616
Units vested		54,020
Units forfeited		23,511
Total fair value of units outstanding		$ 477,000