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Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2022 |  | 172,631 |  |  |
Beginning Balance at Dec. 31, 2022 | $ 1,438,394 | $ 345 | $ 979,167 | $ 528,179 | $ (69,297)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net issuance of common stock under stock plans (in shares) |  | 449 |  |  |
Net issuance of common stock under stock plans | (3,055) | $ 1 | (3,056) |  |
Repurchase of common stock (in shares) |  | (479) |  |  |
Repurchase of common stock | (24,178) | $ (1) |  | (24,177) |
Stock-based compensation expense | 16,579 |  | 16,579 |  |
Payment of dividends | (12,091) |  |  | (12,091) |
Net income | 25,615 |  |  | 25,615 |
Net unrealized gain (loss) on available-for-sale investments, net of tax | 5,426 |  |  |  | 5,426
Reclassification of net realized (gain) loss on the sale of available-for-sale investments | 0 |  |  |  |
Foreign currency translation adjustment | (359) |  |  |  | (359)
Ending Balance (in shares) at Apr. 02, 2023 |  | 172,601 |  |  |
Ending Balance at Apr. 02, 2023 | $ 1,446,331 | $ 345 | 992,690 | 517,526 | (64,230)
Beginning Balance (in shares) at Dec. 31, 2023 | 171,599 | 171,599 |  |  |
Beginning Balance at Dec. 31, 2023 | $ 1,504,752 | $ 343 | 1,037,202 | 512,543 | (45,336)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net issuance of common stock under stock plans (in shares) |  | 294 |  |  |
Net issuance of common stock under stock plans | (2,861) | $ 0 | (2,861) |  |
Repurchase of common stock (in shares) |  | (231) |  |  |
Repurchase of common stock | (9,339) | $ 0 |  | (9,339) |
Stock-based compensation expense | 13,302 |  | 13,302 |  |
Payment of dividends | (12,888) |  |  | (12,888) |
Net income | 12,022 |  |  | 12,022 |
Net unrealized gain (loss) on available-for-sale investments, net of tax | 359 |  |  |  | 359
Reclassification of net realized (gain) loss on the sale of available-for-sale investments | (2) |  |  |  | (2)
Foreign currency translation adjustment | $ (16,156) |  |  |  | (16,156)
Ending Balance (in shares) at Mar. 31, 2024 | 171,662 | 171,662 |  |  |
Ending Balance at Mar. 31, 2024 | $ 1,489,189 | $ 343 | $ 1,047,643 | $ 502,338 | $ (61,135)

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