Deferred Compensation Arrangement, Days Following The End Of The Participant’s Employment

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Deferred Compensation Arrangement, Stock Price, Days Following The End Of The Participant’s Employment

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Represents the amount of employee's contribution, as of balance sheet date, in accordance with the terms and understanding of the deferred compensation arrangement.

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Represents the number of units outstanding, as of balance sheet date, in accordance with the terms and understanding of the deferred compensation arrangement.

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Represents the number of units unvested, as of balance sheet date, in accordance with the terms and understanding of the deferred compensation arrangement.

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Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Weighted Average Period for Recognition

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest

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No definition available.

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- Definition

Represents the minimum percentage of return on equity as a basis of performance-based vesting in equity-based compensation.

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- Definition

Represents the number of installments in which awards are vested in equity-based compensation.

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- Definition

Represents the performance period as a basis of performance-based vesting in equity-based compensation.

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Share Based Compensation Arrangement by Share Based Payment Award Number Of Anniversaries For Vesting Of Awards

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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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- Definition

Amount of paid and unpaid cash dividends declared and applicable to holders of share-based compensation, for example, but not limited to, non-vested shares, stock options, or restricted stock units.

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No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

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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- Definition

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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- Definition

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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- Definition

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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- Definition

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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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- 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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Percentage of vesting of share-based compensation awards.

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Aggregate value of stock related to Restricted Stock Awards issued during the period.

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STOCK BASED AND OTHER COMPENSATION PLANS - Additional Information (Details)																		3 Months Ended		9 Months Ended
	Feb. 18, 2019	Feb. 18, 2019 $ / shares	Feb. 18, 2019 shares	Feb. 18, 2019 USD ($)	Feb. 18, 2019	Feb. 18, 2019 installment	Jan. 24, 2019 USD ($) shares	Jul. 19, 2018 USD ($) installment shares	Apr. 24, 2018 USD ($) installment anniversary shares	Feb. 18, 2018 USD ($) shares	Dec. 21, 2017 USD ($) installment shares	Jun. 22, 2017 USD ($) installment anniversary shares	Jun. 19, 2017 USD ($) shares	Mar. 03, 2017 USD ($) installment anniversary shares	Feb. 18, 2017 USD ($) installment anniversary shares	Jan. 24, 2017 USD ($) shares	Mar. 17, 2015	Mar. 31, 2019 USD ($) shares	Mar. 31, 2018 USD ($) shares	Sep. 30, 2018	Dec. 31, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $				$ 11,700,000
Period of recognition for unrecognized compensation costs																		30 months	35 months
Unrecognized compensation cost \| $																		$ 21,400,000	$ 12,400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Weighted Average Period for Recognition																		35 months		25 months 9 days
Bonus expense \| $																		$ 11,292,000	$ 2,400,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares granted (in shares)																		1,552,114	25,370
Bonus expense \| $																		$ 11,292,000	$ 2,400,000
2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of recognition for unrecognized compensation costs	3 years										3 years				3 years
2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock \| Performance-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum performance target percentage															8.00%
Performance period															3 years
2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock \| Time Based Vesting on Three Year Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments in which awards are vested					3	3					3				3
Number of anniversaries in which awards are vested \| anniversary															3
2014 Omnibus Incentive Plan \| Michael Mazzei \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of recognition for unrecognized compensation costs												3 years
2014 Omnibus Incentive Plan \| Harris \| Restricted Stock \| Time-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period											3 years
2014 Omnibus Incentive Plan \| Non-Management Grantee \| Restricted Stock \| Time Based Vesting on Three Year Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of installments in which awards are vested \| installment											3
2014 Deferred Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Days following the end of the participant’s employment																	60 days
Stock price, days following the end of the participant’s employment																	45 days
Units outstanding (in shares)																		249,788			380,662
Units unvested (in shares)																		133,037			130,389
Total employee's contribution, net of forfeitures and payouts related to terminations \| $																		$ 4,300,000
Phantom Units 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total employee's contribution, net of forfeitures and payouts related to terminations \| $																					$ 5,900,000
Class A Common Stock \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares granted (in shares)								4,720	3,566	25,370								1,541,683	25,370
Number of installments in which awards are vested \| installment						3		3	3
Number of anniversaries in which awards are vested \| anniversary									3
Period of recognition for unrecognized compensation costs								3 years
Grant date fair value \| $								$ 100,000	$ 100,000	$ 400,000
Class A Common Stock \| Management Grantees \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares granted (in shares)							682
Grant date fair value \| $							$ 11,328
Class A Common Stock \| Board of Directors \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares granted (in shares)			25,626
Vesting period	1 year
Grant date fair value \| $				$ 400,000
Class A Common Stock \| Non-Management Grantee \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares granted (in shares)			849,087
Vesting percentage					50.00%
Number of installments in which awards are vested					3
Aggregate value of restricted stock awards \| $ / shares		$ 14,909,967
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $														$ 100,000
Number of restricted shares granted (in shares)														5,130
Number of installments in which awards are vested \| installment														3
Number of anniversaries in which awards are vested \| anniversary														3
Vesting period														3 years
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock \| Year 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock \| Period 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock \| Period 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock \| Period 4
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock \| Period 5
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Restricted Stock \| Period 6
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $											$ 10,500,000				$ 10,200,000	$ 30,455
Number of restricted shares granted (in shares)			666,288								768,205				736,461	2,191
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock \| Time-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage											50.00%				50.00%
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock \| Performance-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					50.00%						50.00%				50.00%
Number of installments in which awards are vested \| installment											3				3
Number of anniversaries in which awards are vested \| anniversary															3
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Management Grantees \| Restricted Stock With Dividend Equivalent Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $															$ 48,475
Number of restricted shares granted (in shares)															3,500
Cash dividends received \| $															$ 1,000,000
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Board of Directors \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $															$ 224,993
Number of restricted shares granted (in shares)															16,245
Vesting period															1 year
Class A Common Stock \| 2014 Omnibus Incentive Plan \| New Employee \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $															$ 400,002
Number of restricted shares granted (in shares)															28,881
Number of installments in which awards are vested \| installment															2
Number of anniversaries in which awards are vested \| installment															2
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Michael Mazzei \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $												$ 100,000
Number of restricted shares granted (in shares)												5,346
Number of installments in which awards are vested \| installment												3
Number of anniversaries in which awards are vested \| anniversary												3
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Non-Management Grantee \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate value of awards granted \| $											$ 5,000,000		$ 300,000		$ 600,000
Number of restricted shares granted (in shares)											369,328		21,307		40,000
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Non-Management Grantee \| Restricted Stock \| Time-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage											50.00%
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Non-Management Grantee \| Restricted Stock \| Performance-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage											50.00%
Number of installments in which awards are vested \| installment											3
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Non-Management Grantee \| Restricted Stock \| Period 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,775
Class A Common Stock \| 2014 Omnibus Incentive Plan \| Non-Management Grantee \| Restricted Stock \| Period 7
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected To Vest (in shares)													1,780
Class A Common Stock \| 2014 Deferred Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining vesting period																	3 years