10. Stock-based Compensation and Common Stock Share Repurchases

Stock-based Compensation Expense

For the three months ended September 30, 2024 and 2023 and for the nine months ended September 30, 2024 and 2023, stock-based compensation expense excluded $1,539, $1,406, $5,227, and $3,843, respectively, of capitalized website development costs, capitalized internal-use software costs, and capitalized hosting arrangements.

Common Stock Share Repurchases

On November 7, 2023, the Company announced that the Board of Directors authorized a share repurchase program (the "2024 Share Repurchase Program") pursuant to which the Company may, from time to time, purchase shares of its Class A common stock for an aggregate purchase price not to exceed $250.0 million. Share repurchases under the 2024 Share Repurchase Program may be made through a variety of methods, including but not limited to open market purchases, privately negotiated transactions, and transactions that may be effected pursuant to one or more plans under Rule 10b5-1 and/or Rule 10b-18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The 2024 Share Repurchase Program does not obligate the Company to repurchase any minimum dollar amount or number of shares. The 2024 Share Repurchase Program has an effective date of January 1, 2024, and an expiration date of December 31, 2024, and prior to its expiration may be modified, suspended, or discontinued by the Board of Directors at any time without prior notice. All repurchased shares of Class A common stock under the 2024 Share Repurchase Program will be retired. The Company has funded and expects to continue to fund any additional share repurchases under the 2024 Share Repurchase Program through cash on hand and cash generated from operations.

On December 8, 2022, the Company announced that the Board of Directors authorized a share repurchase program (the “2022 Share Repurchase Program”) pursuant to which the Company could, from time to time, purchase shares of its Class A common stock for an aggregate purchase price not to exceed $250.0 million. The 2022 Share Repurchase Program expired on December 31, 2023. The 2022 Share Repurchase Program did not obligate the Company to repurchase any minimum dollar amount or number of shares. All repurchased shares of Class A common stock under the 2022 Share Repurchase Program were retired. The Company funded share repurchases under the 2022 Share Repurchase Program through cash on hand and cash generated from operations.

On November 7, 2024, the Company announced that the Board of Directors authorized a share repurchase program with an effective date of January 1, 2025, and an expiration date of December 31, 2025. See Note 14 of these Unaudited Condensed Consolidated Financial Statements for additional information.

During the three months ended September 30, 2024, the Company repurchased and retired 164,301 shares for $3,700, exclusive of commissions and excise tax, at an average cost of $22.52 per share, under the 2024 Share Repurchase Program. During the nine months ended September 30, 2024, the Company repurchased and retired 6,357,302 shares for $146,117, exclusive of commissions and excise tax, at an average cost of $22.98 per share, under the 2024 Share Repurchase Program. As of September 30, 2024, the Company had remaining authorization to purchase up to $103,883 of the Company's Class A common stock under the 2024 Share Repurchase Program.

During the three months ended September 30, 2023, the Company repurchased and retired 956,248 shares for $17,115, exclusive of commissions and excise tax, at an average cost of $17.90 per share, under the 2022 Share Repurchase Program. During the nine months ended September 30, 2023, the Company repurchased and retired 6,257,496 shares for $104,234, exclusive of commissions and excise tax, at an average cost of $16.66 per share, under the 2022 Share Repurchase Program.