Organization and Plan of Business Operations	3 Months Ended	12 Months Ended
Organization and Plan of Business Operations	Mar. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Organization and Plan of Business Operations	Note 1 — Organization and Plan of Business Operations Thunder Bridge Acquisition II, Ltd. (the “Company”) is a newly organized blank check company incorporated as a Cayman Islands exempted company on February 13, 2019. The Company was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (a “Business Combination”). The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “Securities Act”), as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). All activity for the period from February 13, 2019 (date of inception) through August 13, 2019 relates to the Company’s formation and its initial public offering (the “Initial Public Offering”), which is described in Note 3. The registration statement for the Initial Public Offering was declared effective on August 8, 2019. On August 13, 2019 the Company consummated the Initial Public Offering of 34,500,000 units (“Units” and, with respect to the Class A ordinary shares included in the Units offered, the “Public Shares”), generating gross proceeds of $345,000,000, which is described in Note 3. Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 8,650,000 warrants (the “Private Placement Warrants”) at a price of $1.00 per warrant in a private placement to Thunder Bridge Acquisition II, LLC (the “Sponsor”), generating gross proceeds of $8,650,000, which is described in Note 4. Following the closing of the Initial Public Offering, on August 13, 2019, an amount of $345,000,000 ($10.00 per Unit) from the net proceeds of the sale of the Units in the Initial Public Offering and the sale of the Private Placement Warrants was placed in a trust account (“Trust Account”) which may be invested in U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act of 1940, as amended (the “Investment Company Act”), with a maturity of 180 days or less or in any open-ended investment company that holds itself out as a money market fund selected by the Company meeting the conditions of Rule 2a-7 of the Investment Company Act, as determined by the Company, until the earlier of: (i) the consummation of a Business Combination or (ii) the distribution of the Trust Account, as described below. Transaction costs amounted to $19,483,537 consisting of $6,900,000 of underwriting fees, $12,075,000 of deferred underwriting fees (see Note 6) and $508,537 of other costs. In addition, $1,230,680 of cash was held outside of the Trust Account and is available for working capital purposes. The Company’s management has broad discretion with respect to the specific application of the net proceeds of the Initial Public Offering and the sale of the Private Placement Warrants, although substantially all of the net proceeds are intended to be applied generally toward consummating a Business Combination. The Company’s initial Business Combination must be with one or more target businesses that together have a fair market value equal to at least 80% of the balance in the Trust Account (excluding any deferred underwriting commissions and taxes payable on the income earned on the Trust Account) at the time of the signing an agreement to enter into a Business Combination. However, the Company will only complete a Business Combination if the post-Business Combination company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target sufficient for it not to be required to register as an investment company under the Investment Company Act. There is no assurance that the Company will be able to successfully effect a Business Combination. The Company will provide the holders of the public shares (the “Public Shareholders”) with the opportunity to redeem all or a portion of their public shares upon the completion of the Business Combination, either (i) in connection with a shareholder meeting called to approve the Business Combination or (ii) by means of a tender offer, in either case at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account as of two business days prior to the consummation of the Business Combination, including interest (which interest shall be net of taxes payable) divided by the number of then outstanding public shares. Notwithstanding the foregoing, if the Company seeks shareholder approval of the Business Combination and the Company does not conduct redemptions pursuant to the tender offer rules, a Public Shareholder, together with any affiliate of such shareholder or any other person with whom such shareholder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), will be restricted from redeeming its shares with respect to more than an aggregate of 15% of the public shares. In connection with any shareholder vote required to approve any Business Combination, the Sponsor and any other shareholder of the Company prior to the consummation of the Public Offering (collectively with the Sponsor, the “Initial Shareholders”) and the Company’s directors and officers will agree (i) to vote any of their respective Ordinary Shares (as defined below) in favor of the initial Business Combination and (ii) not to redeem any of their Ordinary Shares in connection therewith. The Company will proceed with a Business Combination only if it has net tangible assets of at least $5,000,001 upon consummation of the Business Combination and, in the case of a shareholder vote, a majority of the outstanding Ordinary Shares voted are voted in favor of the Business Combination. The NASDAQ rules require that the Business Combination must be with one or more target businesses that together have an aggregate fair market value equal to at least 80% of the balance in the Trust Account (less any Deferred Commissions (as defined below) and taxes payable on interest earned) at the time of the Company signing a definitive agreement in connection with the Business Combination. The Company will have until August 13, 2021 to consummate a Business Combination (the “Combination Period”). If the Company has not completed a Business Combination within 24 months of the closing of the Initial Public Offering, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest (which interest shall be net of taxes payable, and less up to $100,000 of interest to pay dissolution expenses) divided by the number of then outstanding public shares, which redemption will completely extinguish the rights of the Public Shareholders as shareholders (including the right to receive further liquidation distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining shareholders and its Board of Directors, dissolve and liquidate, subject in each case to the Company’s obligations under Cayman Islands law to provide for claims of creditors and the requirements of other applicable law. In the event of a liquidation, the Public Shareholders will be entitled to receive a full pro rata interest in the Trust Account (initially anticipated to be approximately $10.00 per share, plus any pro rata interest earned on the Trust Fund not previously released to the Company and less up to $100,000 of interest to pay dissolution expenses). There will be no redemption rights or liquidating distributions with respect to the Founder Shares (as defined below) or the Private Placement Warrants, which will expire worthless if the Company fails to complete a Business Combination within the 24-month time period.	Note 1 — Organization and Plan of Business Operations Thunder Bridge Acquisition II, Ltd. (the “Company”) is a newly organized blank check company incorporated as a Cayman Islands exempted company on February 13, 2019. The Company was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (a “Business Combination”). The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “Securities Act”), as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). All activity for the period from February 13, 2019 (date of inception) through August 13, 2019 relates to the Company’s formation and its initial public offering (the “Initial Public Offering”), which is described in Note 3. The registration statement for the Initial Public Offering was declared effective on August 8, 2019. On August 13, 2019 the Company consummated the Initial Public Offering of 34,500,000 units (“Units” and, with respect to the Class A ordinary shares included in the Units offered, the “Public Shares”), generating gross proceeds of $345,000,000, which is described in Note 3. Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 8,650,000 warrants (the “Private Placement Warrants”) at a price of $1.00 per warrant in a private placement to Thunder Bridge Acquisition II, LLC (the “Sponsor”), generating gross proceeds of $8,650,000, which is described in Note 4. Following the closing of the Initial Public Offering, an amount of $345,000,000 ($10.00 per Unit) from the net proceeds of the sale of the units in the Initial Public Offering and the sale of the Private Placement Warrants was placed in a trust account (“Trust Account”) which may be invested in U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act of 1940, as amended (the “Investment Company Act”), with a maturity of 180 days or less or in any open-ended investment company that holds itself out as a money market fund selected by the Company meeting the conditions of Rule 2a-7 of the Investment Company Act, as determined by the Company, until the earlier of: (i) the consummation of a Business Combination or (ii) the distribution of the Trust Account, as described below. Transaction costs amounted to $19,483,537 consisting of $6,900,000 of underwriting fees, $12,075,000 of deferred underwriting fees (see Note 6) and $508,537 of other costs. In addition, $1,230,680 of cash was held outside of the Trust Account and is available for working capital purposes. The Company’s management has broad discretion with respect to the specific application of the net proceeds of the Initial Public Offering and the sale of the Private Placement Warrants, although substantially all of the net proceeds are intended to be applied generally toward consummating a Business Combination. The Company’s initial Business Combination must be with one or more target businesses that together have a fair market value equal to at least 80% of the balance in the Trust Account (excluding any deferred underwriting commissions and taxes payable on the income earned on the Trust Account) at the time of the signing an agreement to enter into a Business Combination. However, the Company will only complete a Business Combination if the post-Business Combination company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target sufficient for it not to be required to register as an investment company under the Investment Company Act. There is no assurance that the Company will be able to successfully effect a Business Combination. The Company will provide the holders of the public shares (the “Public Shareholders”) with the opportunity to redeem all or a portion of their public shares upon the completion of the Business Combination, either (i) in connection with a shareholder meeting called to approve the Business Combination or (ii) by means of a tender offer, in either case at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account as of two business days prior to the consummation of the Business Combination, including interest (which interest shall be net of taxes payable) divided by the number of then outstanding public shares. Notwithstanding the foregoing, if the Company seeks shareholder approval of the Business Combination and the Company does not conduct redemptions pursuant to the tender offer rules, a Public Shareholder, together with any affiliate of such shareholder or any other person with whom such shareholder is acting in concert or as a “group” (as defined in Section 13(d)(3) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), will be restricted from redeeming its shares with respect to more than an aggregate of 15% of the public shares. In connection with any shareholder vote required to approve any Business Combination, the Sponsor and any other shareholder of the Company prior to the consummation of the Public Offering (collectively with the Sponsor, the “Initial Shareholders”) and the Company’s directors and officers will agree (i) to vote any of their respective Ordinary Shares (as defined below) in favor of the initial Business Combination and (ii) not to redeem any of their Ordinary Shares in connection therewith. The Company will proceed with a Business Combination only if it has net tangible assets of at least $5,000,001 upon consummation of the Business Combination and, in the case of a shareholder vote, a majority of the outstanding Ordinary Shares voted are voted in favor of the Business Combination. The NASDAQ rules require that the Business Combination must be with one or more target businesses that together have an aggregate fair market value equal to at least 80% of the balance in the Trust Account (less any Deferred Commissions (as defined below) and taxes payable on interest earned) at the time of the Company signing a definitive agreement in connection with the Business Combination. The Company will have until August 13, 2021 to consummate a Business Combination (the “Combination Period”). If the Company has not completed a Business Combination within 24 months of the closing of the Initial Public Offering, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest (which interest shall be net of taxes payable, and less up to $100,000 of interest to pay dissolution expenses) divided by the number of then outstanding public shares, which redemption will completely extinguish the rights of the Public Shareholders as shareholders (including the right to receive further liquidation distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining shareholders and its Board of Directors, dissolve and liquidate, subject in each case to the Company’s obligations under Cayman Islands law to provide for claims of creditors and the requirements of other applicable law. In the event of a liquidation, the Public Shareholders will be entitled to receive a full pro rata interest in the Trust Account (initially anticipated to be approximately $10.00 per share, plus any pro rata interest earned on the Trust Fund not previously released to the Company and less up to $100,000 of interest to pay dissolution expenses). There will be no redemption rights or liquidating distributions with respect to the Founder Shares (as defined below) or the Private Placement Warrants, which will expire worthless if the Company fails to complete a Business Combination within the 24-month time period.