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Nature of Operations and Summary of Significant Accounting Policies Impact of Adoption of ASC 606 on Previously Reported Balance Sheet (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
--- | --- | --- | --- | ---
CURRENT ASSETS: |  |  |  |
Cash and cash equivalents | $ 93,628 | $ 31,440 | $ 114,765 | $ 70,310
Receivables, net | 310,080 | 297,271 |  |
Income tax receivable | 17,817 | 21,671 |  |
Prepaid expenses and other | 106,466 | 96,069 |  |
Deferred costs | 35,102 | 22,991 |  |
Assets held for sale | 6,355 | 1,300 |  |
Total current assets | 569,448 | 470,742 |  |
PROPERTY AND EQUIPMENT, net | 272,474 | 285,550 |  |
OTHER ASSETS: |  |  |  |
Non-current deferred costs | 90,084 | 74,865 |  |
Computer software, net of amortization | 318,969 | 288,172 |  |
Other non-current assets | 134,743 | 110,299 |  |
Other intangible assets, net of amortization | 31,514 | 38,467 |  |
Goodwill | 666,944 | 649,929 |  |
Total other assets | 1,342,907 | 1,276,766 |  |
Total assets | 2,184,829 | 2,033,058 |  |
CURRENT LIABILITIES: |  |  |  |
Accounts payable | 9,850 | 30,360 |  |
Accrued expenses | 120,360 | 88,764 |  |
Deferred revenues | 339,752 | 328,931 |  |
Total current liabilities | 469,962 | 448,055 |  |
LONG-TERM LIABILITIES: |  |  |  |
Non-current deferred revenues | 54,554 | 40,984 |  |
Deferred income tax liability | 217,010 | 208,303 |  |
Other long-term liabilities | 14,290 | 12,872 |  |
Total long-term liabilities | 285,854 | 262,159 |  |
Total liabilities | 755,816 | 710,214 |  |
STOCKHOLDERS' EQUITY |  |  |  |
Preferred stock - $1 par value; 500,000 shares authorized, none issued | 0 | 0 |  |
Common stock - $0.01 par value; 250,000,000 shares authorized; 103,278,562 shares issued at June 30, 2018 | 1,035 | 1,033 |  |
Additional paid-in capital | 472,029 | 464,138 |  |
Retained earnings | 2,066,073 | 1,912,933 |  |
Less treasury stock at cost; 26,107,903 shares at June 30, 2018 | (1,110,124) | (1,055,260) |  |
Total stockholders' equity | 1,429,013 | 1,322,844 | 1,099,693 |
Total liabilities and equity | 2,184,829 | 2,033,058 |  |
Previously Reported [Member] |  |  |  |
CURRENT ASSETS: |  |  |  |
Cash and cash equivalents |  | 31,440 | 114,765 | 70,310
Receivables, net |  | 291,630 |  |
Income tax receivable |  | 21,671 |  |
Prepaid expenses and other |  | 84,738 |  |
Deferred costs |  | 34,907 |  |
Total current assets |  | 465,686 |  |
PROPERTY AND EQUIPMENT, net |  | 285,550 |  |
OTHER ASSETS: |  |  |  |
Non-current deferred costs |  | 95,540 |  |
Computer software, net of amortization |  | 288,172 |  |
Other non-current assets |  | 107,775 |  |
Other intangible assets, net of amortization |  | 38,467 |  |
Goodwill |  | 649,929 |  |
Total other assets |  | 1,294,917 |  |
Total assets |  | 2,046,153 |  |
CURRENT LIABILITIES: |  |  |  |
Accounts payable |  | 30,360 |  |
Accrued expenses |  | 97,848 |  |
Deferred revenues |  | 355,538 |  |
Total current liabilities |  | 483,746 |  |
LONG-TERM LIABILITIES: |  |  |  |
Non-current deferred revenues |  | 93,094 |  |
Deferred income tax liability |  | 189,613 |  |
Other long-term liabilities |  | 12,872 |  |
Total long-term liabilities |  | 295,579 |  |
Total liabilities |  | 779,325 |  |
STOCKHOLDERS' EQUITY |  |  |  |
Preferred stock - $1 par value; 500,000 shares authorized, none issued |  | 0 |  |
Common stock - $0.01 par value; 250,000,000 shares authorized; 103,278,562 shares issued at June 30, 2018 |  | 1,033 |  |
Additional paid-in capital |  | 464,138 |  |
Retained earnings |  | 1,856,917 |  |
Less treasury stock at cost; 26,107,903 shares at June 30, 2018 |  | (1,055,260) |  |
Total stockholders' equity |  | 1,266,828 |  |
Total liabilities and equity |  | 2,046,153 |  |
Restatement Adjustment [Member] |  |  |  |
CURRENT ASSETS: |  |  |  |
Prepaid expenses and other |  | (72) |  |
Deferred costs |  | (4,078) |  |
Assets held for sale |  | 1,300 |  |
CURRENT LIABILITIES: |  |  |  |
Accounts payable |  | (4,150) |  |
Deferred revenues |  | (23,500) |  |
LONG-TERM LIABILITIES: |  |  |  |
Non-current deferred revenues |  | 23,500 |  |
Accounting Standards Update 2014-09 [Member] |  |  |  |
CURRENT ASSETS: |  |  |  |
Cash and cash equivalents |  | 0 | $ 0 | $ 0
Receivables, net |  | 5,641 |  |
Income tax receivable |  | 0 |  |
Prepaid expenses and other |  | 11,331 |  |
Deferred costs |  | (11,916) |  |
Assets held for sale |  | 0 |  |
Total current assets |  | 5,056 |  |
PROPERTY AND EQUIPMENT, net |  | 0 |  |
OTHER ASSETS: |  |  |  |
Non-current deferred costs |  | (20,675) |  |
Computer software, net of amortization |  | 0 |  |
Other non-current assets |  | 2,524 |  |
Other intangible assets, net of amortization |  | 0 |  |
Goodwill |  | 0 |  |
Total other assets |  | (18,151) |  |
Total assets |  | (13,095) |  |
CURRENT LIABILITIES: |  |  |  |
Accounts payable |  | 0 |  |
Accrued expenses |  | (9,084) |  |
Deferred revenues |  | (26,607) |  |
Total current liabilities |  | (35,691) |  |
LONG-TERM LIABILITIES: |  |  |  |
Non-current deferred revenues |  | (52,110) |  |
Deferred income tax liability |  | 18,690 |  |
Other long-term liabilities |  | 0 |  |
Total long-term liabilities |  | (33,420) |  |
Total liabilities |  | (69,111) |  |
STOCKHOLDERS' EQUITY |  |  |  |
Preferred stock - $1 par value; 500,000 shares authorized, none issued |  | 0 |  |
Common stock - $0.01 par value; 250,000,000 shares authorized; 103,278,562 shares issued at June 30, 2018 |  | 0 |  |
Additional paid-in capital |  | 0 |  |
Retained earnings |  | 56,016 |  |
Less treasury stock at cost; 26,107,903 shares at June 30, 2018 |  | 0 |  |
Total stockholders' equity |  | 56,016 |  |
Total liabilities and equity |  | (13,095) |  |
Customer Relationships [Member] |  |  |  |
OTHER ASSETS: |  |  |  |
Customer relationships, net of amortization | $ 100,653 | 115,034 |  |
Customer Relationships [Member] | Previously Reported [Member] |  |  |  |
OTHER ASSETS: |  |  |  |
Customer relationships, net of amortization |  | 115,034 |  |
Customer Relationships [Member] | Accounting Standards Update 2014-09 [Member] |  |  |  |
OTHER ASSETS: |  |  |  |
Customer relationships, net of amortization |  | $ 0 |  |

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