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Summary of Significant Accounting Policies (Impact on Consolidated Balance Sheet Upon Adoption of ASC 842) (Detail) - USD ($) $ / shares in Units, $ in Thousands | Jun. 30, 2020 | Jul. 01, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017
--- | --- | --- | --- | --- | ---
Current assets: |  |  |  |  |
Cash and cash equivalents | $ 500,516 |  | $ 204,202 |  |
Investments in marketable securities | 8,968 |  | 8,680 |  |
Restricted cash | 589 |  | 1,022 |  |
Accounts receivable, net | 87,042 |  | 83,560 |  |
Prepaid expenses and other current assets | 95,651 |  | 29,313 |  |
Total current assets | 692,766 |  | 504,700 |  |
Noncurrent assets: |  |  |  |  |
Property and equipment, net | 286,102 |  | 283,433 |  |
Operating lease assets | 174,935 |  | 0 |  |
Deferred income taxes | 22,277 |  | 12,729 |  |
Intangible assets, net | 287,514 |  | 297,989 |  |
Goodwill | 686,214 |  | 687,256 |  |
Other assets, net | 78,879 |  | 52,113 |  |
Total noncurrent assets | 1,535,921 |  | 1,737,996 |  |
Total assets | 2,228,687 |  | 2,242,696 | $ 2,344,961 |
Current liabilities: |  |  |  |  |
Accounts payable | 46,484 |  | 53,385 |  |
Accrued payroll and benefits | 48,835 |  | 46,664 |  |
Accrued liabilities | 104,431 |  | 76,529 |  |
Deferred revenue | 91,589 |  | 95,944 |  |
Current operating lease liabilities | 51,644 |  | 0 |  |
Current portion of long-term debt | 3,000 |  | 3,000 |  |
Total current liabilities | 345,983 |  | 311,631 |  |
Noncurrent liabilities: |  |  |  |  |
Long-term debt | 286,115 |  | 398,094 |  |
Long-term operating lease liabilities | 176,032 |  | 0 |  |
Deferred income taxes | 24,975 |  | 25,322 |  |
Other liabilities | 82,309 |  | 83,508 |  |
Total noncurrent liabilities | 569,431 |  | 529,992 |  |
Total liabilities | 915,414 |  | 841,623 |  |
Redeemable noncontrolling interest | 2,852 |  | 9,543 | 9,110 |
Shareholders' equity: |  |  |  |  |
Common Stock, $0.01 Par Value | 807 |  | 801 |  |
Additional paid-in capital | 504,434 |  | 486,061 |  |
Retained earnings | 1,927,568 |  | 2,012,902 |  |
Accumulated other comprehensive loss | (9,055) |  | (137,290) |  |
Treasury Stock, at cost | (1,113,333) |  | (970,944) |  |
Total shareholders' equity | 1,310,421 |  | 1,391,530 | 1,519,286 | $ 1,669,039
Total liabilities and shareholders' equity | $ 2,228,687 |  | $ 2,242,696 |  |
Common Stock, Par Value | $ 0.01 |  | $ 0.01 |  |
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |
Shareholders' equity: |  |  |  |  |
Total shareholders' equity |  |  |  | $ (236) |
ASC 842 |  |  |  |  |
Current assets: |  |  |  |  |
Cash and cash equivalents |  | $ 299,445 |  |  |
Investments in marketable securities |  | 8,680 |  |  |
Restricted cash |  | 1,022 |  |  |
Accounts receivable, net |  | 157,829 |  |  |
Prepaid expenses and other current assets |  | 34,241 |  |  |
Total current assets |  | 501,217 |  |  |
Noncurrent assets: |  |  |  |  |
Property and equipment, net |  | 364,683 |  |  |
Operating lease assets |  | 282,978 |  |  |
Deferred income taxes |  | 18,314 |  |  |
Intangible assets, net |  | 418,097 |  |  |
Goodwill |  | 874,451 |  |  |
Other assets, net |  | 62,451 |  |  |
Total noncurrent assets |  | 2,020,974 |  |  |
Total assets |  | 2,522,191 |  |  |
Current liabilities: |  |  |  |  |
Accounts payable |  | 57,627 |  |  |
Accrued payroll and benefits |  | 64,492 |  |  |
Accrued liabilities |  | 69,776 |  |  |
Deferred revenue |  | 99,790 |  |  |
Current operating lease liabilities |  | 66,707 |  |  |
Current portion of long-term debt |  | 3,000 |  |  |
Total current liabilities |  | 361,392 |  |  |
Noncurrent liabilities: |  |  |  |  |
Long-term debt |  | 398,094 |  |  |
Long-term operating lease liabilities |  | 269,387 |  |  |
Deferred income taxes |  | 29,426 |  |  |
Other liabilities |  | 62,819 |  |  |
Total noncurrent liabilities |  | 759,726 |  |  |
Total liabilities |  | 1,121,118 |  |  |
Redeemable noncontrolling interest |  | 9,543 |  |  |
Shareholders' equity: |  |  |  |  |
Common Stock, $0.01 Par Value |  | 801 |  |  |
Additional paid-in capital |  | 486,061 |  |  |
Retained earnings |  | 2,012,902 |  |  |
Accumulated other comprehensive loss |  | (137,290) |  |  |
Treasury Stock, at cost |  | (970,944) |  |  |
Total shareholders' equity |  | 1,391,530 |  |  |
Total liabilities and shareholders' equity |  | 2,522,191 |  |  |
ASC 842 | June 30, 2019 |  |  |  |  |
Current assets: |  |  |  |  |
Cash and cash equivalents |  |  | $ 299,445 |  |
Investments in marketable securities |  |  | 8,680 |  |
Restricted cash |  |  | 1,022 |  |
Accounts receivable, net |  |  | 157,829 |  |
Prepaid expenses and other current assets |  |  | 37,724 |  |
Total current assets |  |  | 504,700 |  |
Noncurrent assets: |  |  |  |  |
Property and equipment, net |  |  | 364,683 |  |
Deferred income taxes |  |  | 18,314 |  |
Intangible assets, net |  |  | 418,097 |  |
Goodwill |  |  | 874,451 |  |
Other assets, net |  |  | 62,451 |  |
Total noncurrent assets |  |  | 1,737,996 |  |
Total assets |  |  | 2,242,696 |  |
Current liabilities: |  |  |  |  |
Accounts payable |  |  | 57,627 |  |
Accrued payroll and benefits |  |  | 64,492 |  |
Accrued liabilities |  |  | 86,722 |  |
Deferred revenue |  |  | 99,790 |  |
Current portion of long-term debt |  |  | 3,000 |  |
Total current liabilities |  |  | 311,631 |  |
Noncurrent liabilities: |  |  |  |  |
Long-term debt |  |  | 398,094 |  |
Deferred income taxes |  |  | 29,426 |  |
Other liabilities |  |  | 102,472 |  |
Total noncurrent liabilities |  |  | 529,992 |  |
Total liabilities |  |  | 841,623 |  |
Redeemable noncontrolling interest |  |  | 9,543 |  |
Shareholders' equity: |  |  |  |  |
Common Stock, $0.01 Par Value |  |  | 801 |  |
Additional paid-in capital |  |  | 486,061 |  |
Retained earnings |  |  | 2,012,902 |  |
Accumulated other comprehensive loss |  |  | (137,290) |  |
Treasury Stock, at cost |  |  | (970,944) |  |
Total shareholders' equity |  |  | 1,391,530 |  |
Total liabilities and shareholders' equity |  |  | $ 2,242,696 |  |
ASC 842 | Adjustments due to adoption of ASC 842 |  |  |  |  |
Current assets: |  |  |  |  |
Prepaid expenses and other current assets |  | (3,483) |  |  |
Total current assets |  | (3,483) |  |  |
Noncurrent assets: |  |  |  |  |
Operating lease assets |  | 282,978 |  |  |
Total noncurrent assets |  | 282,978 |  |  |
Total assets |  | 279,495 |  |  |
Current liabilities: |  |  |  |  |
Accrued liabilities |  | (16,946) |  |  |
Current operating lease liabilities |  | 66,707 |  |  |
Total current liabilities |  | 49,761 |  |  |
Noncurrent liabilities: |  |  |  |  |
Long-term operating lease liabilities |  | 269,387 |  |  |
Other liabilities |  | (39,653) |  |  |
Total noncurrent liabilities |  | 229,734 |  |  |
Total liabilities |  | 279,495 |  |  |
Shareholders' equity: |  |  |  |  |
Total liabilities and shareholders' equity |  | 279,495 |  |  |
ASC 842 | Adjustments due to adoption of ASC 842 | Accrued Liabilities [Member] |  |  |  |  |
Shareholders' equity: |  |  |  |  |
Deferred rent liability, current |  | 6,800 |  |  |
Restructuring liability, current |  | 10,100 |  |  |
ASC 842 | Adjustments due to adoption of ASC 842 | Prepaid Expenses and Other Current Assets |  |  |  |  |
Shareholders' equity: |  |  |  |  |
Prepaid Rent |  | 3,500 |  |  |
ASC 842 | Adjustments due to adoption of ASC 842 | Other Noncurrent Liabilities [Member] |  |  |  |  |
Shareholders' equity: |  |  |  |  |
Deferred rent liability, Noncurrent |  | 24,800 |  |  |
Restructuring liability, Noncurrent |  | $ 14,900 |  |  |

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