Benefit Plans - ESPP Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Equity Incentive Plans
Compensation expense	$ 9,425	$ 6,606
Employee stock purchase plan shares
Equity Incentive Plans
Percentage of employee compensation, maximum	10.00%
Percentage of fair market value as a purchase price	85.00%
Maximum value of purchase per employee	$ 25
Number of shares per employee, maximum	2
Period during which shares can be purchased	1 year
Number of shares of common stock reserved for issuance	1,111
Potential number of additional shares reserved for issuance each year	400
Potential percentage of additional number of shares reserved for issuance each year	0.75%
Compensation expense	$ 439	$ 339
Valuation assumptions:
Expected dividend yield	0.00%	0.00%
Expected volatility	33.50%	39.10%
Expected term (years)	6 months	6 months
Risk-free interest rate	2.10%	1.02%
Employee stock purchase plan shares \| Maximum
Equity Incentive Plans
Offering period	27 months

Represents the length of the employee stock purchase plan offering period.

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Potential percentage of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

The period during which participants can purchase shares of common stock.

+ References

No definition available.

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- Definition

Potential number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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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.

+ References

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- Definition

Aggregate number of common shares reserved for future issuance.

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No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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No definition available.

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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

+ References

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- Definition

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

+ References

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

+ References

No definition available.

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