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Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Common Stock Redeemable Convertible Preferred Stock | Common Stock Series B and Series C Redeemable Convertible Preferred Stock | Common Stock Series C Redeemable Convertible Preferred Stock | Common Stock Common stock warrants | Common Stock Adjusted balance | Common Stock | Additional Paid-in Capital Redeemable Convertible Preferred Stock | Additional Paid-in Capital Series B and Series C Redeemable Convertible Preferred Stock | Additional Paid-in Capital Series C Redeemable Convertible Preferred Stock | Additional Paid-in Capital Adjusted balance | Additional Paid-in Capital | Accumulated Deficit Adjusted balance | Accumulated Deficit Cumulative effect | Accumulated Deficit | Accumulated Other Comprehensive Income | Redeemable Convertible Preferred Stock | Series B and Series C Redeemable Convertible Preferred Stock | Series C Redeemable Convertible Preferred Stock | Common stock warrants | Redeemable convertible preferred stock warrants | Adjusted balance | Cumulative effect | Total
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Beginning Balance at Dec. 31, 2018 |  |  |  |  |  | $ 205 |  |  |  |  | $ 10,615 |  |  | $ (160,662) |  |  |  |  |  |  |  |  | $ (149,842)
Beginning Balance (in shares) at Dec. 31, 2018 |  |  |  |  |  | 20,475,883 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retroactive application of recapitalization |  |  |  |  |  | $ (202) |  |  |  |  | 119,202 |  |  |  |  |  |  |  |  |  |  |  | 119,000
Retroactive application of recapitalization (in shares) |  |  |  |  |  | 8,937,724 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (103,319) |  |  |  |  |  |  |  |  | (103,319)
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 35,972 |  |  |  |  |  |  |  |  |  |  |  | 35,972
Issuance of Series C redeemable convertible preferred stock |  |  |  |  |  |  |  | $ 37,274 |  |  |  |  |  |  |  |  | $ 37,274 |  |  |  |  |  |
Issuance of Series C redeemable convertible preferred stock (in shares) |  | 3,944,897 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares repurchased |  |  |  |  |  |  |  |  |  |  | (42) |  |  |  |  |  |  |  |  |  |  |  | (42)
Shares repurchased (in shares) |  |  |  |  |  | (23,488) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting of restricted stock awards issued for acquisitions (in shares) |  |  |  |  |  | 516,539 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustment to purchase price consideration |  |  |  |  |  |  |  |  |  |  | (290) |  |  |  |  |  |  |  |  |  |  |  | (290)
Issuance of common stock warrants |  |  |  |  |  |  |  |  |  |  | 168 |  |  |  |  |  |  |  |  |  |  |  | 168
Proceeds from issuance of redeemable convertible preferred stock warrants |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  | 4
Issuance of common stock for acquisitions |  |  |  |  |  |  |  |  |  |  | 479 |  |  |  |  |  |  |  |  |  |  |  | 479
Issuance of common stock for acquisitions (in shares) |  |  |  |  |  | 271,287 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options |  |  |  |  |  |  |  |  |  |  | 110 |  |  |  |  |  |  |  |  |  |  |  | 110
Exercise of stock options (in shares) |  |  |  |  |  | 74,980 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2019 |  |  |  |  | $ 3 | $ 3 |  |  |  | $ 129,817 | 203,492 | $ (160,662) | $ 507 | (263,474) |  |  |  |  |  |  | $ (30,842) | $ 507 | (59,979)
Ending Balance (in shares) at Dec. 31, 2019 |  |  |  |  | 29,413,607 | 34,197,822 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 119,000 |  |  |  |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42,104,419 |  |  |  |  |  |  |
Increase (Decrease) in Temporary Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retroactive application of recapitalization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 119,000 |  |  |  |  |  |  |
Retroactive application of recapitalization (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42,104,419 |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (18,367) |  |  |  |  |  |  |  |  | (18,367)
Other comprehensive income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,856 |  |  |  |  |  |  |  | 3,856
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 672 |  |  |  |  |  |  |  |  |  |  |  | 672
Issuance of Series C redeemable convertible preferred stock |  |  |  |  |  |  |  |  | $ 4,714 |  |  |  |  |  |  |  |  | $ 4,714 |  |  |  |  |
Issuance of Series C redeemable convertible preferred stock (in shares) |  |  | 1,430,166 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of convertible notes to Series C redeemable convertible preferred stock |  |  |  |  |  |  |  |  | 1,436 |  |  |  |  |  |  |  |  | 1,436 |  |  |  |  |
Conversion of convertible notes to Series C redeemable convertible preferred stock (in shares) |  |  | 423,088 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting of restricted stock awards issued for acquisitions (in shares) |  |  |  |  |  | 1,005,068 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock warrants |  |  |  |  |  |  |  |  |  |  | 44 |  |  |  |  |  |  |  |  |  |  |  | 44
Exercise of stock options |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  | 1
Exercise of stock options (in shares) |  |  |  |  |  | 17,900 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance at Mar. 31, 2020 |  |  |  |  |  | $ 3 |  |  |  |  | 210,359 |  |  | (281,841) | $ 3,856 |  |  |  |  |  |  |  | (67,623)
Ending Balance (in shares) at Mar. 31, 2020 |  |  |  |  |  | 37,074,044 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2019 |  |  |  |  | $ 3 | $ 3 |  |  |  | $ 129,817 | 203,492 | $ (160,662) | $ 507 | (263,474) |  |  |  |  |  |  | $ (30,842) | $ 507 | (59,979)
Beginning Balance (in shares) at Dec. 31, 2019 |  |  |  |  | 29,413,607 | 34,197,822 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (54,032) |  |  |  |  |  |  |  |  | (54,032)
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 10,660 |  |  |  |  |  |  |  |  |  |  |  | 10,660
Stock-based compensation - earnout |  |  |  |  |  |  |  |  |  |  | 636 |  |  |  |  |  |  |  |  |  |  |  | 636
Stock-based compensation - earnout (in shares) |  |  |  |  |  | 1,976,332 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of Series C redeemable convertible preferred stock |  |  |  |  |  |  |  | $ 4,836 |  |  |  |  |  |  |  |  | $ 4,836 |  |  |  |  |  |
Issuance of Series C redeemable convertible preferred stock (in shares) |  | 682,539 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of convertible notes to Series C redeemable convertible preferred stock |  |  |  |  |  |  | $ 11,029 |  | $ 1,436 |  |  |  |  |  |  | $ 11,029 |  | $ 1,436 |  |  |  |  |
Conversion of convertible notes to Series C redeemable convertible preferred stock (in shares) | 702,791 |  | 198,750,000 | 1,705,266 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,705,266 | 702,791 |  |  |
Shares repurchased |  |  |  |  |  |  | $ (480) |  |  |  |  |  |  |  |  | $ (480) |  |  |  |  |  |  |
Shares repurchased (in shares) | (75,162) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting of restricted stock awards issued for acquisitions (in shares) |  |  |  |  |  | 472,141 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock warrants |  |  |  |  |  |  |  |  |  |  | 44 |  |  |  |  |  |  |  |  |  |  |  | 44
Net share settlement of common stock options and restricted stock units |  |  |  |  |  | 1,189,911 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shareholder contribution |  |  |  |  |  |  |  |  |  |  | 17,584 |  |  |  |  |  |  |  |  |  |  |  | 17,584
Inducement to convert preferred stock |  |  |  |  |  |  |  |  |  |  | (17,284) |  |  |  |  |  |  |  |  |  |  |  | (17,284)
Impacts of recognition of contingent beneficial conversion feature |  |  |  |  |  |  |  |  |  |  | (5,208) |  |  |  |  |  |  |  |  |  |  |  | (5,208)
Recapitalization and PIPE financing |  |  |  |  |  | $ 5 |  |  |  |  | 239,722 |  |  |  |  |  |  |  |  |  |  |  | 239,727
Recapitalization and PIPE financing (in shares) |  |  |  |  |  | 35,304,052 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax impacts of recapitalization |  |  |  |  |  |  |  |  |  |  | 187 |  |  |  |  |  |  |  |  |  |  |  | 187
Issuance of common stock for acquisitions |  |  |  |  |  |  |  |  |  |  | 6,898 |  |  |  |  |  |  |  |  |  |  |  | 6,898
Issuance of common stock for acquisitions (in shares) |  |  |  |  |  | 785,330 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnout liability (in shares) |  |  |  |  |  | 4,023,668 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options |  |  |  |  |  |  |  |  |  |  | 1,029 |  |  |  |  |  |  |  |  |  |  |  | $ 1,029
Exercise of stock options (in shares) |  |  |  |  |  | 505,711 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 439,754
Cancellation of redeemable convertible preferred stock repurchase liability |  |  |  |  |  |  |  |  |  |  | 480 |  |  |  |  |  |  |  |  |  |  |  | $ 480
Ending Balance at Dec. 31, 2020 |  |  |  |  |  | $ 8 |  |  |  |  | 424,823 |  |  | (317,506) |  |  |  |  |  |  |  |  | 107,325
Ending Balance (in shares) at Dec. 31, 2020 |  |  |  |  |  | 81,669,151 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (65,101) |  |  |  |  |  |  |  |  | (65,101)
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | 4,462 |  |  |  |  |  |  |  |  |  |  |  | 4,462
Stock-based compensation - earnout |  |  |  |  |  |  |  |  |  |  | 12,373 |  |  |  |  |  |  |  |  |  |  |  | 12,373
Issuance of common stock for acquisitions |  |  |  |  |  |  |  |  |  |  | 1,169 |  |  |  |  |  |  |  |  |  |  |  | 1,169
Issuance of common stock for acquisitions (in shares) |  |  |  |  |  | 90,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification of earnout liability upon vesting |  |  |  |  |  |  |  |  |  |  | 25,815 |  |  |  |  |  |  |  |  |  |  |  | 25,815
Vesting of restricted stock units (in shares) |  |  |  |  |  | 2,078,102 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock warrants |  |  |  |  |  | $ 1 |  |  |  |  | 93,007 |  |  |  |  |  |  |  |  |  |  |  | 93,008
Exercise of stock warrants (in shares) |  |  |  |  |  | 8,087,623 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options |  |  |  |  |  |  |  |  |  |  | 355 |  |  |  |  |  |  |  |  |  |  |  | 355
Exercise of stock options (in shares) |  |  |  |  |  | 593,106 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax withholdings |  |  |  |  |  |  |  |  |  |  | (16,997) |  |  |  |  |  |  |  |  |  |  |  | (16,997)
Income tax withholdings (in shares) |  |  |  |  |  | (1,062,250) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transaction costs |  |  |  |  |  |  |  |  |  |  | (402) |  |  |  |  |  |  |  |  |  |  |  | (402)
Ending Balance at Mar. 31, 2021 |  |  |  |  |  | $ 9 |  |  |  |  | $ 544,605 |  |  | $ (382,607) |  |  |  |  |  |  |  |  | $ 162,007
Ending Balance (in shares) at Mar. 31, 2021 |  |  |  |  |  | 91,455,732 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References No definition available. + Details
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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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