Issuance Of Shares By Means Of Cashless Net Exercise Procedure

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Effect of Reorganization Transactions and IPO

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Effect of Reorganization Transactions and IPO, Weighted Average Exercise Price

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No definition available.

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- Definition

Shares Exercised By Means of Cashless Net Exercise Procedure

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- Definition

Amount of cash inflow from issuance of shares under share-based compensation arrangement. Issuance includes, but is not limited to, exercise of stock options and similar instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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- Definition

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

+ References

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.

+ References

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- Definition

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

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

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

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Share-Based Compensation - Class A Common Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	5 Months Ended	6 Months Ended
	May 24, 2018	Jun. 30, 2018	May 23, 2018	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Exercises in period, intrinsic value					$ 8
Shares exercised by means of cashless net exercise procedure (in shares)				210,000
Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (in shares)			9,821,884	9,821,884	10,006,890
Granted (in shares)		622,500	340,000		315,000
Exercised (in shares)		0	(270,000)		(2,000)
Forfeited (in shares)		(160,000)	(260,000)		(338,000)
Effect of Reorganization Transactions and IPO (in shares)	(186,772)
Outstanding at end of period (in shares)		9,907,612		9,907,612	9,981,890
Exercisable at end of period (in shares)		7,161,832		7,161,832	6,822,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period (in dollars per share)			$ 2.65	$ 2.65
Granted (in dollars per share)		$ 23.00	14.95
Exercised (in dollars per share)			3.19
Forfeited (in dollars per share)		22.14	$ 6.41
Effect of Reorganization Transactions and IPO (in dollars per share)	$ 7.56
Outstanding at end of period (in dollars per share)		3.83		3.83
Exercisable at end of period (in dollars per share)		$ 1.47		1.47
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average grant date fair value, grants in period (in dollars per share)				$ 6.34	$ 3.52
Exercises in period, intrinsic value				$ 1,190
Employees
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Proceeds from issuance of shares under share-based compensation plans				$ 339
HoldCo Units
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Issuance of shares by means of cashless net exercise procedure (in shares)				38,637
HoldCo Units \| Employees
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Exercised (in shares)				(30,516)