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Represents the amount of bonus per fiscal year based on the achievement of certain performance thresholds with respect to management services agreement.

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No definition available.

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Represents the amount of consulting expense benefit with respect to management services agreement.

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No definition available.

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Represents the measurement period of certain performance metrics, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Represents the percentage of grants tied to certain performance measures as defined in the relevant grant agreement.

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No definition available.

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Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims.

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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 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 non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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MANAGEMENT AGREEMENT (Details) - USD ($) shares in Thousands, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Nov. 30, 2017	Mar. 31, 2014	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Restricted stock units
Management Agreement
Stock-based compensation expense for non-employee awards			$ 5,555	$ 10,351	$ 15,754	$ 30,228
2017 Management Agreement \| Restricted stock units \| Maximum
Management Agreement
Vesting requirement for market-based restricted stock					75th
2017 Management Agreement \| Restricted stock awards
Management Agreement
Vested (in shares)					340
Forfeited (in shares)					33
Zelnick Media Corporation
Management Agreement
Consulting expense benefit			$ 3,432	$ 2,435	$ 6,842	$ 6,296
Zelnick Media Corporation \| 2014 Management Agreement
Management Agreement
Annual management fee		$ 2,970
Zelnick Media Corporation \| 2014 Management Agreement \| Maximum
Management Agreement
Bonus per fiscal year based on the achievement of certain performance thresholds		$ 4,752
Zelnick Media Corporation \| 2014 Management Agreement \| Time-based restricted units
Management Agreement
Granted (in shares)					86	66
Zelnick Media Corporation \| 2014 Management Agreement \| Market-based restricted units
Management Agreement
Granted (in shares)					158	122
Zelnick Media Corporation \| 2014 Management Agreement \| Performance-based restricted units
Management Agreement
Granted (in shares)					53	41
Zelnick Media Corporation \| 2014 Management Agreement \| New IP
Management Agreement
Granted (in shares)					0	21
Zelnick Media Corporation \| 2014 Management Agreement \| Major IP
Management Agreement
Granted (in shares)					0	20
Zelnick Media Corporation \| 2014 Management Agreement \| IP
Management Agreement
Granted (in shares)					27	0
Zelnick Media Corporation \| 2014 Management Agreement \| Recurrent Consumer Spending (RCS)
Management Agreement
Granted (in shares)					26	0
Zelnick Media Corporation \| 2014 Management Agreement \| Restricted stock units
Management Agreement
Granted (in shares)					297	229
Zelnick Media Corporation \| 2017 Management Agreement
Management Agreement
Annual management fee	$ 3,100
Zelnick Media Corporation \| 2017 Management Agreement \| Maximum
Management Agreement
Bonus per fiscal year based on the achievement of certain performance thresholds	$ 7,440
Zelnick Media Corporation \| 2017 Management Agreement \| Market-based restricted stock
Management Agreement
Measurement period					2 years
Percentage of grants earned					50.00%
Vesting requirement for market-based restricted stock					50th
Zelnick Media Corporation \| 2017 Management Agreement \| Performance-based restricted units
Management Agreement
Measurement period					2 years
Percentage of grants earned					50.00%
Zelnick Media Corporation \| 2017 Management Agreement \| New IP
Management Agreement
Percentage of grants earned					50.00%
Zelnick Media Corporation \| 2017 Management Agreement \| Major IP
Management Agreement
Percentage of grants earned					50.00%
Zelnick Media Corporation \| 2017 Management Agreement \| Restricted stock units
Management Agreement
Unvested portion of the shares of restricted stock granted			526		526		602