Allocated share based compensation expense (benefit).

No definition available.

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- Definition

Represents the number of measurement periods.

+ References

No definition available.

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- Definition

Represents the percentage of target number of shares that participating executives can earn under the market stock unit program.

+ References

No definition available.

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- Definition

Represents the annual vesting percentage of awards granted by the entity.

+ References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were cancelled during the reporting period.

+ References

No definition available.

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- Definition

Represents the exercise price of stock options as a percentage based on the fair value of a single share of common stock on the date of grant.

+ References

No definition available.

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- Definition

Represents the number of share-based compensation plans.

+ References

No definition available.

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- Definition

Represents the payroll deductions of employees as a percentage of their salaries.

+ References

No definition available.

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- Definition

Represents the percentage of the award vesting at the first anniversary year of the date of grant.

+ References

No definition available.

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- Definition

Represents the percentage of the award vesting at the second anniversary year of the date of grant.

+ References

No definition available.

+ Details

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- Definition

Represents the expected aggregate amount of shares an employee can purchase under the plan per period.

+ References

No definition available.

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- Definition

Represents the period over which the first twenty-five percentage of share-based compensation awards will vest.

+ References

No definition available.

+ Details

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- Definition

Represents the period in which the remainder of the share-based compensation awards will vest.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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- Definition

Maximum term of the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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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).

+ References

+ Details

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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).

+ References

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

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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.

+ References

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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.

+ References

No definition available.

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- Definition

The highest quantity of shares an employee can purchase under the plan per period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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.

+ References

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Stock Incentive Plan and Employee Stock Purchase Plan - Additional Information (Details)	12 Months Ended
	Jun. 30, 2020 USD ($) Plan Item $ / shares shares	Jun. 30, 2019 USD ($) $ / shares shares	Dec. 31, 2018 $ / shares shares	Jun. 30, 2018 USD ($) $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of stock incentive plans \| Plan	3
Fair value of common stock (in dollars per share) \| $ / shares	$ 2.03
Share-based compensation expense	$ 8,152,000	$ 10,601,000		$ 12,289,000
ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 1,100,000	$ 1,100,000		1,200,000
Weighted average period for recognition of compensation costs	6 months
Unrecognized compensation cost	$ 600,000
Purchase price expressed as percentage of fair market value of common stock	85.00%
Shares issued under the ESPP \| shares	1,100,000	900,000	900,000
Weighted average fair value (in dollars per share) \| $ / shares	$ 2.16	$ 3.31	$ 3.62
Maximum \| ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Payroll deductions as percentage of salaries	10.00%
Number of shares per period up to which employees may purchase \| shares	2,500
Value of shares up to which employees may purchase in any calendar year	$ 25,000
Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total intrinsic value of options exercised	0	$ 100,000		100,000
Share-based compensation expense	2,000,000.0	1,400,000		600,000
Realized excess tax benefits related to stock options exercises	0	0		0
Unrecognized compensation cost related to unvested stock options, net of estimated forfeitures	$ 6,700,000
Weighted average period for recognition of compensation costs	2 years 10 months 20 days
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 4,900,000	$ 7,200,000		$ 7,800,000
Weighted average period for recognition of compensation costs	1 year 9 months 3 days
Unrecognized compensation cost	$ 8,700,000
Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 2.74	$ 3.68		$ 4.57
Aggregate fair market value of units vested	$ 4,700,000
Granted (in shares) \| shares	2,009,000	1,386,000		1,529,000
Vested (in shares) \| shares	1,579,000	1,481,000		1,167,000
Cancelled/Forfeited (in shares) \| shares	343,000	521,000		546,000
Performance Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (in shares) \| shares	419,000	0		53,000
Vested (in shares) \| shares	0	10,000		0
Cancelled (in shares) \| shares	0	53,000		0
Share-based compensation expense (benefit)	$ 0	$ (100,000)		$ 100,000
Cancelled/Forfeited (in shares) \| shares		53,000
Market Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	200,000	$ 1,000,000.0		$ 2,600,000
Unrecognized compensation cost	$ 100,000
Weighted average grant date fair value (in dollars per share) \| $ / shares				$ 4.11
Granted (in shares) \| shares	0	0		654,000
Vested (in shares) \| shares	0	0		0
Cancelled/Forfeited (in shares) \| shares	470,000	756,000		590,000
2007 Amended and Restated Plan \| Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contractual term	10 years
Percentage of the award vesting at first anniversary	25.00%
Vesting period for first 25% vesting rights	1 year
Remainder vesting period	36 months
2007 Amended and Restated Plan \| Stock options \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price of stock options as a percentage of fair market value on the grant date	100.00%
2007 Amended and Restated Plan \| Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of the award vesting at first anniversary	50.00%
Percentage of the award vesting at second anniversary	50.00%
2007 Amended and Restated Plan \| Time-based RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Annual vesting percentage	25.00%
MSU Program \| Market Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 0	$ 0		$ 600,000
Number of measurement periods \| Item	2
MSU Program \| Market Stock Units \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target number of shares that participating executives may earn (as a percent)	150.00%