Stock-Based and Other Long-Term Incentive Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Sep. 30, 2020	Jun. 30, 2020
Performance-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		$ 2.6
Timebased Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding stock, minimum		0.00%
Percentage of outstanding stock, maximum		200.00%
The 2015 Plan \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation, authorized (in shares)		2,474,377
The 2015 Plan \| Restricted Stock Units \| Executive Officer and Key Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Shares available for grant (in shares)	1,622,532
Equity-based compensation (in shares)	156,886
Weighted average grant-date fair value (in dollars per share)	$ 2.06

Share Based Compensation Arrangement by Share Based Payment Award, Percentage of Outstanding Stock Minimum

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Number of shares issued pursuant to the terms of a deferred compensation arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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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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Number of shares authorized for issuance under share-based payment arrangement.

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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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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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