The number of installments of which compensatory stock options vests.

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The number of installments of which non-compensatory stock options vests.

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The number of installments of which stock options vests.

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- Definition

Percentage of additional shares authorized for issuance under an established share-based compensation plan.

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- Definition

Compensatory stock options issued to purchase of common stock under the reorganization transactions.

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Non-compensatory stock options issued to purchase of common stock under the reorganization transactions.

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- Definition

Volume weighted average per share price for any ninety calendar day period within a threshold period immediately following the pricing of the IPO reaches at least $100.

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No definition available.

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Threshold volume weighted average per share price trigger for any ninety calendar day period within such five year period immediately following the pricing of the IPO.

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No definition available.

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- Definition

Volume weighted average per share trigger price threshold period within such five year period immediately following the pricing of the IPO.

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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No definition available.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

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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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

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No definition available.

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- Definition

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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- Definition

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

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No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Number of non-vested options outstanding.

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No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Weighted average grant-date fair value of non-vested options outstanding.

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No definition available.

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Number of options vested.

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No definition available.

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Weighted average grant-date fair value of options vested.

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No definition available.

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EQUITY - 2018 Omnibus Incentive Plan (Details) $ / shares in Units, $ in Thousands		3 Months Ended	9 Months Ended
	Jul. 30, 2018 installment $ / shares shares	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 $ / shares shares
Class A common stock
EQUITY
Non-compensatory stock options granted to purchase shares of common stock	386,832
Compensatory stock options granted to purchase shares of common stock	348,577
2018 Omnibus Incentive Plan \| Class A common stock
EQUITY
Stock options vests, number of installments \| installment	3
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted	178,608		178,608
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Granted	178,608		178,608
Outstanding at the end of the period		178,608	178,608
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Granted \| $ / shares			$ 33.00
Outstanding at the end of the period \| $ / shares		$ 33.00	33.00
Fair value of the stock option grants determined with assumptions
Weighted average grant date fair value \| $ / shares			$ 33.00
2018 Omnibus Incentive Plan \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted			890,409
Outstanding at the end of the period		890,409	890,409
Vested			386,832
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Granted \| $ / shares			$ 33.00
Outstanding at the end of the period \| $ / shares		$ 33.00	33.00
Vested \| $ / shares			$ 33.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Granted			890,409
Vested			386,832
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Vested \| $ / shares			$ 33.00
Fair value of the stock option grants determined with assumptions
Expected term (in years)			5 years
Expected unit price volatility (in percent)			30.00%
Risk free interest rate (in percent)			2.78%
Compensation expense recognized \| $		$ 6,098
2018 Omnibus Incentive Plan \| Stock options \| IPO and Reorganization transactions
Fair value of the stock option grants determined with assumptions
Compensation expense recognized \| $		$ 4,504
2018 Omnibus Incentive Plan \| Stock options \| Class A common stock
EQUITY
Non-compensatory stock options granted to purchase shares of common stock	386,832
Compensatory stock options granted to purchase shares of common stock	348,577
Non-compensatory stock options vests, number of installments \| installment	3
Compensatory stock options vests, number of installments \| installment	3
2018 Omnibus Incentive Plan \| Time-based stock option awards
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Granted \| $ / shares			$ 12.90
Fair value of the stock option grants determined with assumptions
Expected term (in years)			7 years 3 months 18 days
Expected unit price volatility (in percent)			33.00%
Risk free interest rate (in percent)			2.90%
Weighted average grant date fair value \| $ / shares			$ 12.90
2018 Omnibus Incentive Plan \| Market condition-based awards
EQUITY
Threshold period	90 days
Vesting period threshold following IPO pricing	5 years
Threshold volume weighted average per share price trigger \| $ / shares	$ 100
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Granted \| $ / shares			3.97
Fair value of the stock option grants determined with assumptions
Weighted average grant date fair value \| $ / shares			$ 3.97
2018 Omnibus Incentive Plan \| Market condition-based awards \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted	155,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Granted	155,000
2018 Omnibus Incentive Plan \| Maximum \| Stock options
EQUITY
Shares authorized	6,000,000
Additional shares authorized for issuance under an established share-based compensation plan	3,000,000
2018 Omnibus Incentive Plan \| Maximum \| Stock options \| Class A common stock
EQUITY
Percentage of additional shares authorized for issuance under an established share-based compensation plan to the outstanding shares	5.00%