2023 CarOffer Transaction	12 Months Ended
Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]
2023 CarOffer Transaction	4. 2023 CarOffer Transaction Background Pursuant to the 2021 Purchase Agreement, the Company acquired a 51% interest in CarOffer. Upon the 2021 Closing, the Company acquired a 51% interest in CarOffer for the 2021 Total Consideration, which was an aggregate consideration of $173,155 consisting of (a) the 2021 Stock Consideration consisting of shares of Class A common stock in the aggregate amount of $103,645 and (b) the 2021 Cash Consideration consisting of $69,510 in cash. The number of shares of Class A common stock issued following the 2021 Closing in connection with the 2021 Stock Consideration was 3,115,282, which was calculated by reference to a value of $22.51 per share, which equals the volume-weighted average closing price per share of Class A common stock on the Nasdaq Global Select Market for the 28 consecutive trading days ending on the third Business Day (as defined in the 2021 Purchase Agreement) preceding the 2021 Agreement Date. Pursuant to the 2021 Purchase Agreement, the Remaining Equity was retained by the then-current equity holders of CarOffer and subject to certain call and put arrangements discussed below. Pursuant to the 2021 Purchase Agreement, the Company established a retention pool in an aggregate amount of $8,000 in the form of RSUs to be issued pursuant to the Company’s standard form of RSU agreement under the 2017 Plan, (i) $6,000 of which was granted to certain CarOffer employees following the 2021 Closing in accordance with the terms of the 2021 Purchase Agreement and (ii) $2,000 of which is available for issuance to future CarOffer employees in accordance with the terms of the 2021 Purchase Agreement. RSUs issued from the retention pool will be subject to vesting based on rendering of future services. As of December 31, 2023 and, 2022, the Company did not incur any transaction-related costs related to the 2021 CarOffer Transaction. As of December 31, 2021, the Company incurred total transaction-related costs of $2,647 related to the 2021 CarOffer Transaction, of which $709 was incurred for the year ended December 31, 2021, and recognized within general and administrative operating expenses in the consolidated income statements. Transaction-related costs were excluded from the purchase price allocation as they were primarily comprised of legal, professional, and consulting expenses. The foregoing summary of the 2021 Purchase Agreement, the 2021 CarOffer Operating Agreement, and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the 2021 Purchase Agreement and the 2021 CarOffer Operating Agreement, which are filed as Exhibit 2.1 to the Annual Report on Form 10-K for the year ended December 31, 2020, filed on February 21, 2021, and Exhibit 10.27 to the Annual Report on Form 10-K for the year ended December 31, 2021, filed on February 25, 2022, respectively. Completion of Acquisition On December 1, 2023, the Company completed its previously announced acquisition of the remaining minority equity interests in CarOffer pursuant to the terms of the 2023 Purchase Agreement. Pursuant to the 2023 Purchase Agreement, the Company acquired the remaining minority equity interests in CarOffer for the 2023 Consideration, consisting of an aggregate consideration of $75.0 million in cash, subject to certain adjustments set forth in the 2023 Purchase Agreement. A portion of the 2023 Consideration is held in escrow to secure certain payment and indemnification obligations of the Indirect Members in accordance with the terms of the 2023 Purchase Agreement. Upon completion of the 2023 CarOffer Transaction, the Company recorded approximately a $50 million stock-based compensation charge, which consisted of payments for CO Incentive Units and Subject Units, and payments made to holders of noncontrolling interest ("Noncontrolling Interest Units"), resulting from the modification of the 2021 Purchase Agreement. The completion of the transaction additionally relieved the redeemable noncontrolling interests on its consolidated balance sheets, reducing the remaining redeemable noncontrolling interest on its consolidated balance sheets to zero and recording excess cash paid to these unit holders as a deemed dividend of $5,838. Refer to Note 11 to these consolidated financial statements for further disclosure on impact of the modifications that resulted from the 2023 CarOffer Transaction. Following the 2023 CarOffer Transaction, CarOffer is a wholly-owned subsidiary and the Company entered into the 2023 CarOffer Operating Agreement, pursuant to which, among other matters, the existing put and call rights were terminated. The foregoing summary of the 2023 Purchase Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the 2023 Purchase Agreement, which was filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K, dated November 6, 2023, and filed on November 7, 2023. The Company has incurred $1,044 of transaction-related costs, recognized within general and administrative, sales and marketing, and product, technology and development operating expenses in the consolidated income statements. These costs primarily consisted of legal and integration expenses associated with the 2023 CarOffer Transaction. There was no gain associated with the 2023 CarOffer Transaction. Refer to Valuation of Acquired Assets and Liabilities policy within Note 2 of these consolidated financial statements for the Company's policy on the initial valuation of the assets and liabilities following the 2021 CarOffer Transaction. Refer to Stock-Based Compensation policy within Note 2 of these consolidated financial statements for the Company's policy on valuation of the liability-based awards that were accelerated and redeemed in connection with the 2023 CarOffer Transaction.

2023 CarOffer Transaction

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

2023 CarOffer Transaction

4. 2023 CarOffer Transaction

Background

Pursuant to the 2021 Purchase Agreement, the Company acquired a 51% interest in CarOffer.

Upon the 2021 Closing, the Company acquired a 51% interest in CarOffer for the 2021 Total Consideration, which was an aggregate consideration of $173,155 consisting of (a) the 2021 Stock Consideration consisting of shares of Class A common stock in the aggregate amount of $103,645 and (b) the 2021 Cash Consideration consisting of $69,510 in cash. The number of shares of Class A common stock issued following the 2021 Closing in connection with the 2021 Stock Consideration was 3,115,282, which was calculated by reference to a value of $22.51 per share, which equals the volume-weighted average closing price per share of Class A common stock on the Nasdaq Global Select Market for the 28 consecutive trading days ending on the third Business Day (as defined in the 2021 Purchase Agreement) preceding the 2021 Agreement Date.

Pursuant to the 2021 Purchase Agreement, the Remaining Equity was retained by the then-current equity holders of CarOffer and subject to certain call and put arrangements discussed below. Pursuant to the 2021 Purchase Agreement, the Company established a retention pool in an aggregate amount of $8,000 in the form of RSUs to be issued pursuant to the Company’s standard form of RSU agreement under the 2017 Plan, (i) $6,000 of which was granted to certain CarOffer employees following the 2021 Closing in accordance with the terms of the 2021 Purchase Agreement and (ii) $2,000 of which is available for issuance to future CarOffer employees in accordance with the terms of the 2021 Purchase Agreement. RSUs issued from the retention pool will be subject to vesting based on rendering of future services.

As of December 31, 2023 and, 2022, the Company did not incur any transaction-related costs related to the 2021 CarOffer Transaction. As of December 31, 2021, the Company incurred total transaction-related costs of $2,647 related to the 2021 CarOffer Transaction, of which $709 was incurred for the year ended December 31, 2021, and recognized within general and administrative operating expenses in the consolidated income statements. Transaction-related costs were excluded from the purchase price allocation as they were primarily comprised of legal, professional, and consulting expenses.

The foregoing summary of the 2021 Purchase Agreement, the 2021 CarOffer Operating Agreement, and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the 2021 Purchase Agreement and the 2021 CarOffer Operating Agreement, which are filed as Exhibit 2.1 to the Annual Report on Form 10-K for the year ended December 31, 2020, filed on February 21, 2021, and Exhibit 10.27 to the Annual Report on Form 10-K for the year ended December 31, 2021, filed on February 25, 2022, respectively.

Completion of Acquisition

On December 1, 2023, the Company completed its previously announced acquisition of the remaining minority equity interests in CarOffer pursuant to the terms of the 2023 Purchase Agreement.

Pursuant to the 2023 Purchase Agreement, the Company acquired the remaining minority equity interests in CarOffer for the 2023 Consideration, consisting of an aggregate consideration of $75.0 million in cash, subject to certain adjustments set forth in the 2023 Purchase Agreement. A portion of the 2023 Consideration is held in escrow to secure certain payment and indemnification obligations of the Indirect Members in accordance with the terms of the 2023 Purchase Agreement.

Upon completion of the 2023 CarOffer Transaction, the Company recorded approximately a $50 million stock-based compensation charge, which consisted of payments for CO Incentive Units and Subject Units, and payments made to holders of noncontrolling interest ("Noncontrolling Interest Units"), resulting from the modification of the 2021 Purchase Agreement. The completion of the transaction additionally relieved the redeemable noncontrolling interests on its consolidated balance sheets, reducing the remaining redeemable noncontrolling interest on its consolidated balance sheets to zero and recording excess cash paid to these unit holders as a deemed dividend of $5,838. Refer to Note 11 to these consolidated financial statements for further disclosure on impact of the modifications that resulted from the 2023 CarOffer Transaction.

Following the 2023 CarOffer Transaction, CarOffer is a wholly-owned subsidiary and the Company entered into the 2023 CarOffer Operating Agreement, pursuant to which, among other matters, the existing put and call rights were terminated.

The foregoing summary of the 2023 Purchase Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the 2023 Purchase Agreement, which was filed as Exhibit 2.1 to the Company’s Current Report on Form 8-K, dated November 6, 2023, and filed on November 7, 2023.

The Company has incurred $1,044 of transaction-related costs, recognized within general and administrative, sales and marketing, and product, technology and development operating expenses in the consolidated income statements. These costs primarily consisted of legal and integration expenses associated with the 2023 CarOffer Transaction. There was no gain associated with the 2023 CarOffer Transaction.

Refer to Valuation of Acquired Assets and Liabilities policy within Note 2 of these consolidated financial statements for the Company's policy on the initial valuation of the assets and liabilities following the 2021 CarOffer Transaction. Refer to Stock-Based Compensation policy within Note 2 of these consolidated financial statements for the Company's policy on valuation of the liability-based awards that were accelerated and redeemed in connection with the 2023 CarOffer Transaction.