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Stockholders' Equity (Narrative) (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 31, 2017 USD ($) | Nov. 30, 2017 USD ($) shares | Jun. 30, 2024 USD ($) offering $ / shares shares | Jun. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2022 USD ($) shares | Jun. 30, 2021 shares | Feb. 21, 2014 shares | Apr. 30, 1997 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares authorized to be repurchased under repurchase program (in shares) |  |  |  |  |  |  | 20,000,000.0 |
Treasury stock acquired (in shares) |  |  | 828,000 | 0 |  |  |  |
Cost of common shares repurchased | $ |  |  | $ 150,011 |  |  |  |  |
Total number of shares repurchased pursuant to the repurchase program (in shares) |  |  | 42,664,067 | 41,836,234 |  |  |  |
Additional shares that can be repurchased under the approved share repurchase program (in shares) |  |  | 12,100,000 |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  | 2,000,000 | 2,000,000 |  |  |  | 2,000,000.0
Preferred stock at par value (in dollars per share) | $ / shares |  |  | $ 0.01 | $ 0.01 |  |  |  | $ 0.01
Preferred stock, shares issued (in shares) |  |  | 0 | 0 |  |  |  |
Preferred stock, shares outstanding (in shares) |  |  | 0 |  |  |  |  |
Expiration period |  |  | 7 years |  |  |  |  |
Reduction in the number of shares of common stock available for issuance (in shares) |  |  | 2.8 |  |  |  |  |
Number of shares given for each share of common stock delivered in settlement of all other awards (in shares) |  |  | 1 |  |  |  |  |
Maximum number of shares subject to awards granted (in shares) |  |  | 3,000,000 |  |  |  |  |
Number of common stock shares granted in participant's initial year of hiring (in shares) |  |  | 4,500,000 |  |  |  |  |
Fair value of RSUs and PRSUs | $ |  |  | $ 51,000 | $ 66,800 | $ 65,500 |  |  |
Aggregate intrinsic value of the options exercised | $ |  |  | 17,900 | $ 25,400 | $ 33,700 |  |  |
Aggregate intrinsic value of the stock-based compensation arrangements outstanding | $ |  |  | 42,900 |  |  |  |  |
Aggregate intrinsic value of the stock-based compensation arrangements exercisable | $ |  |  | 39,800 |  |  |  |  |
Aggregate intrinsic value of the stock-based compensation arrangements exercisable, vested and expected to vest | $ |  |  | $ 42,700 |  |  |  |  |
Shares issued under Employee Stock Purchase Plan (in shares) |  |  | 323,000 | 220,000 | 216,000 |  |  |
Stock-based compensation expense | $ |  |  | $ 80,184 | $ 71,142 | $ 65,257 |  |  |
Unrecognized compensation costs related to unvested stock-based compensation arrangements | $ |  |  | $ 142,400 |  |  |  |  |
Expected weighted average period of unrecognized compensation costs related to unvested stock-based compensation arrangements |  |  | 2 years 7 months 6 days |  |  |  |  |
2009 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock authorized for issuance and pending registration (in shares) |  | 7,400,000 |  |  |  |  |  |
Extended period |  | 4 years |  |  |  |  |  |
Common stock authorized for issuance (in shares) |  |  | 51,100,000 |  |  |  |  |
Common stock reserved for future issuance (in shares) |  |  | 12,500,000 |  |  |  |  |
Amended and Restated 2009 Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Maximum amount payable pursuant to cash denominated performance awards granted | $ | $ 3,000 | $ 5,000 |  |  |  |  |  |
Amended and Restated 2009 Plan | Non Employee Director |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Maximum award amount with other cash fees earned for services | $ |  | 700 |  |  |  |  |  |
Amended and Restated 2009 Plan | Board of Directors Chairman |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Maximum award amount with other cash fees earned for services | $ |  | $ 1,200 |  |  |  |  |  |
Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock reserved for future issuance (in shares) |  |  | 1,000,000.0 |  |  |  |  |
Percentage of purchase price of common stock lower than the fair market value of common stock on the date of grant |  |  | 85.00% |  |  |  |  |
Percentage of purchase price of common stock lower than the fair market value of common stock on the date of purchase |  |  | 85.00% |  |  |  |  |
Number of offerings | offering |  |  | 2 |  |  |  |  |
Stock-based compensation expense | $ |  |  | $ 11,400 | $ 11,500 | $ 11,000 |  |  |
Performance Restricted Stock Units (PRSUs) |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting period |  |  | 3 years |  |  |  |  |
Minimum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting period |  |  | 1 year |  |  |  |  |
Minimum | Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Employee stock purchase program offering period |  |  | 3 months |  |  |  |  |
Minimum | Performance Restricted Stock Units (PRSUs) |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentage |  |  | 200.00% |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting period |  |  | 4 years |  |  |  |  |
Maximum | Employee Stock Purchase Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Employee stock purchase program offering period |  |  | 27 months |  |  |  |  |
Common stock shares subscribed | $ |  |  | $ 25 |  |  |  |  |
Maximum | Performance Restricted Stock Units (PRSUs) |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting percentage |  |  | 225.00% |  |  |  |  |
Treasury Stock |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Treasury stock acquired (in shares) |  |  | 828,000 |  |  |  |  |
Cost of common shares repurchased | $ |  |  | $ 150,011 |  |  |  |  |
Total number of shares repurchased pursuant to the repurchase program (in shares) |  |  | 42,664,000 | 41,836,000 | 41,836,000 | 41,836,000 |  |
Total cost of shares repurchased pursuant to the repurchase program | $ |  |  | $ 1,800,000 |  |  |  |  |

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