Earnings per Share
Net income is divided by the weighted average number of common shares outstanding during the year to calculate basic earnings per share. The following table summarizes the dilutive effect of RSUs on common stock:
Year ended December 31,
202420232022
Weighted average common shares—basic40,725,714 41,439,027 42,249,244 
Dilutive effect of restricted stock units330,279 246,321 228,771 
Weighted average common shares—diluted41,055,993 41,685,348 42,478,015 
In March 2020, the Company announced its Board of Directors had authorized the Company to increase the purchase of its common stock up to $250 million in the aggregate. The initial authorization, approved in November 2015, authorized up to $50 million of purchases in the aggregate of its common stock. During 2024, 2023 and 2022, the Company purchased 771,067, 680,594 and 1,264,088 shares of its outstanding common stock for $19.3 million, $18.8 million and $36.9 million, respectively. As of December 31, 2024, the Company has $67.6 million remaining under the repurchase authorization.
Holders of common stock are entitled to dividends at the discretion of the Company's Board of Directors. In 2021, the Company's Board of Directors declared the first dividend since the Company's initial public offering in 2007. Since the fourth quarter of 2021, we have declared dividends of $0.04 per share of common stock in each quarter, and total dividends declared and paid on common shares during 2024, 2023 and 2022 were $6.6 million, $6.7 million and $6.9 million, respectively.

About Earnings Per Share Disclosures

The earnings per share disclosure breaks down the calculation from net income to both basic and diluted EPS, revealing the full impact of a company's capital structure on per-share economics. The reconciliation between basic and diluted share counts exposes how many stock options, RSUs, convertible securities, and warrants are potentially dilutive to existing shareholders.

Key signals: a widening gap between basic and diluted shares indicates growing dilution from equity compensation or convertible instruments. Anti-dilutive securities excluded from the diluted calculation deserve attention — they represent latent dilution that will materialize if the stock price rises. Watch for the effect of share buybacks on per-share metrics: EPS growth driven primarily by repurchases rather than income growth signals weakening fundamentals. Compare year-over-year changes in the diluted share count against equity compensation expense to assess whether management is effectively managing dilution.