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Assets Held for Sale - Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Operating lease right-of-use assets | $ 15,181 | $ 0
Operating lease liabilities, current | 2,875 | 0
Operating lease liabilities, noncurrent | 11,915 | $ 0
Disposal Group, Held-for-sale, Not Discontinued Operations | B2B Backup Business |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Accounts receivable, net of allowance of $346 | 6,513 |
Prepaid expenses and other current assets | 2,426 |
Property and equipment, net | 10,161 |
Goodwill | 48,632 |
Deferred income taxes, noncurrent | 11,326 |
Other assets | 94 |
Total assets held for sale | 107,126 |
Accounts payable and accrued expenses | 2,720 |
Income taxes payable, current | 155 |
Deferred revenue, current | 2,650 |
Other current liabilities | 393 |
Deferred revenue, noncurrent | 4 |
Deferred income taxes, noncurrent | 563 |
Other long-term liabilities | 170 |
Total liabilities held for sale | 21,445 |
Disposal Group, Held-for-sale, Not Discontinued Operations | B2B Backup Business | Trade names |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Intangible assets | 3,886 |
Disposal Group, Held-for-sale, Not Discontinued Operations | B2B Backup Business | Customer relationship |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Intangible assets | 8,131 |
Disposal Group, Held-for-sale, Not Discontinued Operations | B2B Backup Business | Other intangibles |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Intangible assets | $ 776 |

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