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Discontinued Operations and Dispositions - Major Classes of Assets and Liabilities of Discontinued Operations That Were Included in the Company’s Consolidated Balance Sheet (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
ASSETS |  |  |  |
Cash and cash equivalents | $ 0 | $ 66,210 | $ 51,141 | $ 73,952
Current assets, discontinued operations | 0 | 84,029 |  |
Total assets, discontinued operations | 0 | 567,551 |  |
LIABILITIES |  |  |  |
Current liabilities, discontinued operations | 0 | 61,192 |  |
Liability for uncertain tax positions | $ 42,546 | 53,089 |  |
J2 Global | Discontinued Operations |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents |  | 66,210 |  |
Accounts receivable, net |  | 16,071 |  |
Prepaid expenses and other current assets |  | 1,748 |  |
Current assets, discontinued operations |  | 84,029 |  |
Property and equipment, net |  | 25,053 |  |
Operating lease right-of-use assets |  | 25,711 |  |
Trade names, net |  | 29,350 |  |
Customer relationships, net |  | 13,678 |  |
Goodwill |  | 342,430 |  |
Other purchased intangibles, net |  | 1,681 |  |
Deferred income taxes, noncurrent |  | 44,350 |  |
Other non-current assets |  | 1,269 |  |
Total assets, discontinued operations |  | 567,551 |  |
LIABILITIES |  |  |  |
Trade accounts payable and accrued expenses |  | 32,795 |  |
Income taxes payable, current |  | 1,307 |  |
Deferred revenue, current |  | 24,512 |  |
Operating lease liabilities, current |  | 2,578 |  |
Current liabilities, discontinued operations |  | 61,192 |  |
Deferred revenue, noncurrent |  | 240 |  |
Operating lease liabilities, noncurrent |  | 25,549 |  |
Liability for uncertain tax positions |  | 3,993 |  |
Deferred income taxes, noncurrent |  | 5,392 |  |
Other long-term liabilities |  | 3,063 |  |
Total liabilities, discontinued operations |  | $ 99,429 |  |

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