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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Common Stock | Treasury Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive (Loss) Income Net of Income Taxes | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2021 | $ 162 | $ (1,802) | $ 717,228 | $ 84,249 | $ (771) | $ 799,066
Balance (in shares) at Dec. 31, 2021 | 162,347 | 50 |  |  |  |
Foreign currency translation adjustment |  |  |  |  | (1,570) | (1,570)
Shares repurchased for settlement of employee tax withholdings |  | $ (1,058) |  |  |  | (1,058)
Shares repurchased for settlement of employee tax withholdings (in shares) |  | 41 |  |  |  |
Stock-based compensation expense |  |  | 10,994 |  |  | 10,994
Common stock issued to non-employees (in shares) | 4 |  |  |  |  |
Common stock issued upon exercise of stock options | $ 1 |  | 1,677 |  |  | 1,678
Common stock issued upon exercise of stock options (in shares) | 572 |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) | 195 |  |  |  |  |
Net Income |  |  |  | 4,579 |  | 4,579
Balance at Mar. 31, 2022 | $ 163 | $ (2,860) | 729,899 | 88,828 | (2,341) | 813,689
Balance (in shares) at Mar. 31, 2022 | 163,118 | 91 |  |  |  |
Balance at Dec. 31, 2021 | $ 162 | $ (1,802) | 717,228 | 84,249 | (771) | 799,066
Balance (in shares) at Dec. 31, 2021 | 162,347 | 50 |  |  |  |
Foreign currency translation adjustment |  |  |  |  |  | (7,204)
Net Income |  |  |  |  |  | 14,869
Balance at Jun. 30, 2022 | $ 164 | $ (7,546) | 737,574 | 99,118 | (7,975) | 821,335
Balance (in shares) at Jun. 30, 2022 | 164,133 | 283 |  |  |  |
Balance at Mar. 31, 2022 | $ 163 | $ (2,860) | 729,899 | 88,828 | (2,341) | 813,689
Balance (in shares) at Mar. 31, 2022 | 163,118 | 91 |  |  |  |
Foreign currency translation adjustment |  |  |  |  | (5,634) | (5,634)
Shares repurchased for settlement of employee tax withholdings |  | $ (8,133) |  |  |  | (8,133)
Shares repurchased for settlement of employee tax withholdings (in shares) |  | 320 |  |  |  |
Stock-based compensation expense |  |  | 9,517 |  |  | 9,517
Common stock issued under employee purchase plan |  |  | 768 |  |  | 768
Common stock issued under employee purchase plan (in shares) | 41 |  |  |  |  |
Common stock issued upon exercise of stock options |  |  | 838 |  |  | 838
Common stock issued upon exercise of stock options (in shares) | 176 |  |  |  |  |
Common stock issued upon vesting of restricted stock units | $ 1 |  | (1) |  |  |
Common stock issued upon vesting of restricted stock units (in shares) | 798 |  |  |  |  |
Treasury stock reissued upon settlement of equity awards |  | $ 3,447 | (3,447) |  |  |
Treasury stock reissued upon settlement of equity awards (in shares) |  | (128) |  |  |  |
Net Income |  |  |  | 10,290 |  | 10,290
Balance at Jun. 30, 2022 | $ 164 | $ (7,546) | 737,574 | 99,118 | (7,975) | 821,335
Balance (in shares) at Jun. 30, 2022 | 164,133 | 283 |  |  |  |
Balance at Dec. 31, 2022 | $ 165 | $ (796) | 756,299 | 127,517 | (6,326) | 876,859
Balance (in shares) at Dec. 31, 2022 | 165,448 | 31 |  |  |  |
Foreign currency translation adjustment |  |  |  |  | 1,193 | 1,193
Shares repurchased for settlement of employee tax withholdings |  | $ (787) |  |  |  | (787)
Shares repurchased for settlement of employee tax withholdings (in shares) |  | 30 |  |  |  |
Stock-based compensation expense |  |  | 11,992 |  |  | 11,992
Common stock issued upon exercise of stock options | $ 1 |  | 1,765 |  |  | 1,766
Common stock issued upon exercise of stock options (in shares) | 527 |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) | 182 |  |  |  |  |
Treasury stock reissued upon settlement of equity awards |  | $ 914 | (914) |  |  |
Treasury stock reissued upon settlement of equity awards (in shares) |  | (35) |  |  |  |
Net Income |  |  |  | 12,175 |  | 12,175
Balance at Mar. 31, 2023 | $ 166 | $ (669) | 769,142 | 139,692 | (5,133) | 903,198
Balance (in shares) at Mar. 31, 2023 | 166,157 | 26 |  |  |  |
Balance at Dec. 31, 2022 | $ 165 | $ (796) | 756,299 | 127,517 | (6,326) | 876,859
Balance (in shares) at Dec. 31, 2022 | 165,448 | 31 |  |  |  |
Foreign currency translation adjustment |  |  |  |  |  | $ 816
Common stock issued upon exercise of stock options (in shares) |  |  |  |  |  | 1,295
Net Income |  |  |  |  |  | $ 25,014
Balance at Jun. 30, 2023 | $ 167 | $ (528) | 787,562 | 152,531 | (5,510) | 934,222
Balance (in shares) at Jun. 30, 2023 | 167,250 | 16 |  |  |  |
Balance at Mar. 31, 2023 | $ 166 | $ (669) | 769,142 | 139,692 | (5,133) | 903,198
Balance (in shares) at Mar. 31, 2023 | 166,157 | 26 |  |  |  |
Foreign currency translation adjustment |  |  |  |  | (377) | (377)
Shares repurchased for settlement of employee tax withholdings |  | $ (1,966) |  |  |  | (1,966)
Shares repurchased for settlement of employee tax withholdings (in shares) |  | 57 |  |  |  |
Stock-based compensation expense |  |  | 15,399 |  |  | 15,399
Common stock issued under employee purchase plan |  |  | 1,138 |  |  | 1,138
Common stock issued under employee purchase plan (in shares) | 49 |  |  |  |  |
Common stock issued upon exercise of stock options | $ 1 |  | 3,990 |  |  | 3,991
Common stock issued upon exercise of stock options (in shares) | 711 |  |  |  |  |
Common stock issued upon vesting of restricted stock units (in shares) | 333 |  |  |  |  |
Treasury stock reissued upon settlement of equity awards |  | $ 2,107 | (2,107) |  |  |
Treasury stock reissued upon settlement of equity awards (in shares) |  | (67) |  |  |  |
Net Income |  |  |  | 12,839 |  | 12,839
Balance at Jun. 30, 2023 | $ 167 | $ (528) | $ 787,562 | $ 152,531 | $ (5,510) | $ 934,222
Balance (in shares) at Jun. 30, 2023 | 167,250 | 16 |  |  |  |

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