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Restatement - Unaudited Condensed Consolidated Balance Sheet (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Jan. 01, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ 212,147 |  |  | $ 189,082 | $ 211,812 |  |  |  |
Accounts receivable, net of allowances of $4,419 | 14,417 |  |  | 13,177 | 13,700 |  |  |  |
Allowance for credit loss | 5,703 | $ 5,734 |  | 4,730 | 4,419 | $ 4,508 |  |  | $ 4,060
Prepaid expenses and other current assets | 17,494 |  |  | 16,699 | 16,360 |  |  |  |
Current assets held for sale | 22,722 |  |  | 22,722 | 22,722 |  |  |  |
Total current assets | 266,780 |  |  | 241,680 | 264,594 |  |  |  |
Property and equipment, net | 43,763 |  |  | 30,823 | 29,012 |  |  |  |
Goodwill | 63,318 |  |  | 63,229 | 63,184 |  |  |  |
Intangible assets, net | 15,026 |  |  | 18,900 | 13,552 |  |  |  |
Operating lease right-of-use assets | 9,199 |  |  | 11,148 | 11,796 |  |  | $ 5,700 |
Deferred income taxes | 18,570 |  |  | 29,380 | 30,276 |  |  |  |
Available-for-sale debt securities | 1,237 |  |  | 995 | 1,183 |  |  |  |
Other assets | 8,620 |  |  | 9,240 | 12,876 |  |  |  |
Total assets | 426,513 |  |  | 405,395 | 426,473 |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable | 32,311 |  |  | 25,312 | 25,805 |  |  |  |
Accrued expenses and other current liabilities | 55,375 |  |  | 57,373 | 59,895 |  |  |  |
Deferred revenue | 176,867 |  |  | 164,200 | 167,967 |  |  |  |
Operating lease liabilities | 2,269 |  |  | 2,317 | 2,054 |  |  |  |
Total current liabilities | 266,822 |  |  | 249,202 | 255,721 |  |  |  |
Operating lease liabilities, non-current | 7,346 |  |  | 8,958 | 9,568 |  |  |  |
Deferred revenue | 560 |  |  | 892 | 1,013 |  |  |  |
Other liabilities | 4,443 |  |  | 3,968 | 2,926 |  |  |  |
Total liabilities | 279,171 |  |  | 263,020 | 269,228 |  |  |  |
Stockholders’ equity: |  |  |  |  |  |  |  |  |
Preferred stock, $0.001 par value; 100,000 shares authorized at September 30, 2023 and December 31, 2022, none issued or outstanding at September 30, 2023 and December 31, 2022 | $ 0 |  |  | $ 0 | $ 0 |  |  |  |
Preferred stock par value (in dollars per share) | $ 0.001 |  |  | $ 0.001 | $ 0.001 |  |  |  |
Preferred stock shares authorized (in shares) | 100,000 |  |  | 100,000 | 100,000 |  |  |  |
Preferred stock shares issued (in shares) | 0 |  |  | 0 | 0 |  |  |  |
Preferred stock shares outstanding (in shares) | 0 |  |  | 0 | 0 |  |  |  |
Common stock, $0.001 par value; 1,000,000 shares authorized; 187,776 shares and 190,822 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively | $ 187 |  |  | $ 190 | $ 193 |  |  |  |
Common stock par value (in dollars per share) | $ 0.001 |  |  | $ 0.001 | $ 0.001 |  |  |  |
Common stock shares authorized (in shares) | 1,000,000 |  |  | 1,000,000 | 1,000,000 |  |  |  |
Common stock shares issued (in shares) | 187,776 |  |  | 190,822 | 193,848 |  |  |  |
Common stock shares outstanding (in shares) | 187,776 |  |  | 190,822 | 193,848 |  |  |  |
Additional paid-in capital | $ 1,086,222 |  |  | $ 1,032,550 | $ 1,015,068 |  |  |  |
Accumulated deficit | (940,550) |  |  | (891,862) | (862,514) |  |  |  |
Accumulated other comprehensive income | 1,483 |  |  | 1,497 | 4,498 |  |  |  |
Total stockholders’ equity | 147,342 | $ 168,349 | $ 150,017 | 142,375 | 157,245 | $ 170,948 | $ 194,707 |  | $ 197,551
Total liabilities and stockholders’ equity | $ 426,513 |  |  | $ 405,395 | 426,473 |  |  |  |
As Reported |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  | 211,812 |  |  |  |
Accounts receivable, net of allowances of $4,419 |  |  |  |  | 13,578 |  |  |  |
Prepaid expenses and other current assets |  |  |  |  | 16,624 |  |  |  |
Current assets held for sale |  |  |  |  | 22,722 |  |  |  |
Total current assets |  |  |  |  | 264,736 |  |  |  |
Property and equipment, net |  |  |  |  | 29,012 |  |  |  |
Goodwill |  |  |  |  | 63,184 |  |  |  |
Intangible assets, net |  |  |  |  | 13,552 |  |  |  |
Operating lease right-of-use assets |  |  |  |  | 11,796 |  |  |  |
Deferred income taxes |  |  |  |  | 27,473 |  |  |  |
Available-for-sale debt securities |  |  |  |  | 1,183 |  |  |  |
Other assets |  |  |  |  | 12,877 |  |  |  |
Total assets |  |  |  |  | 423,813 |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable |  |  |  |  | 25,805 |  |  |  |
Accrued expenses and other current liabilities |  |  |  |  | 59,916 |  |  |  |
Deferred revenue |  |  |  |  | 168,705 |  |  |  |
Operating lease liabilities |  |  |  |  | 2,054 |  |  |  |
Total current liabilities |  |  |  |  | 256,480 |  |  |  |
Operating lease liabilities, non-current |  |  |  |  | 9,568 |  |  |  |
Deferred revenue |  |  |  |  | 1,013 |  |  |  |
Other liabilities |  |  |  |  | 2,926 |  |  |  |
Total liabilities |  |  |  |  | 269,987 |  |  |  |
Stockholders’ equity: |  |  |  |  |  |  |  |  |
Preferred stock, $0.001 par value; 100,000 shares authorized at September 30, 2023 and December 31, 2022, none issued or outstanding at September 30, 2023 and December 31, 2022 |  |  |  |  | 0 |  |  |  |
Common stock, $0.001 par value; 1,000,000 shares authorized; 187,776 shares and 190,822 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively |  |  |  |  | 193 |  |  |  |
Additional paid-in capital |  |  |  |  | 1,015,068 |  |  |  |
Accumulated deficit |  |  |  |  | (865,933) |  |  |  |
Accumulated other comprehensive income |  |  |  |  | 4,498 |  |  |  |
Total stockholders’ equity |  |  |  |  | 153,826 |  |  |  |
Total liabilities and stockholders’ equity |  |  |  |  | 423,813 |  |  |  |
Adjustments |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  | 0 |  |  |  |
Accounts receivable, net of allowances of $4,419 |  |  |  |  | 122 |  |  |  |
Prepaid expenses and other current assets |  |  |  |  | (264) |  |  |  |
Current assets held for sale |  |  |  |  | 0 |  |  |  |
Total current assets |  |  |  |  | (142) |  |  |  |
Property and equipment, net |  |  |  |  | 0 |  |  |  |
Goodwill |  |  |  |  | 0 |  |  |  |
Intangible assets, net |  |  |  |  | 0 |  |  |  |
Operating lease right-of-use assets |  |  |  |  | 0 |  |  |  |
Deferred income taxes |  |  |  |  | 2,803 |  |  |  |
Available-for-sale debt securities |  |  |  |  | 0 |  |  |  |
Other assets |  |  |  |  | (1) |  |  |  |
Total assets |  |  |  |  | 2,660 |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable |  |  |  |  | 0 |  |  |  |
Accrued expenses and other current liabilities |  |  |  |  | (21) |  |  |  |
Deferred revenue |  |  |  |  | (738) |  |  |  |
Operating lease liabilities |  |  |  |  | 0 |  |  |  |
Total current liabilities |  |  |  |  | (759) |  |  |  |
Operating lease liabilities, non-current |  |  |  |  | 0 |  |  |  |
Deferred revenue |  |  |  |  | 0 |  |  |  |
Other liabilities |  |  |  |  | 0 |  |  |  |
Total liabilities |  |  |  |  | (759) |  |  |  |
Stockholders’ equity: |  |  |  |  |  |  |  |  |
Preferred stock, $0.001 par value; 100,000 shares authorized at September 30, 2023 and December 31, 2022, none issued or outstanding at September 30, 2023 and December 31, 2022 |  |  |  |  | 0 |  |  |  |
Common stock, $0.001 par value; 1,000,000 shares authorized; 187,776 shares and 190,822 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively |  |  |  |  | 0 |  |  |  |
Additional paid-in capital |  |  |  |  | 0 |  |  |  |
Accumulated deficit |  |  |  |  | 3,419 |  |  |  |
Accumulated other comprehensive income |  |  |  |  | 0 |  |  |  |
Total stockholders’ equity |  |  |  |  | 3,419 |  |  |  |
Total liabilities and stockholders’ equity |  |  |  |  | $ 2,660 |  |  |  |

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