v3.26.1
Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2026
Earnings Per Share  
Summary of basic and diluted earnings per share calculations

Quarter ended March 31, 

  ​ ​ ​

2026

  ​ ​ ​

2025

(in thousands, except per share amounts)

Net income

$

82,322

  ​ ​ ​

$

76,280

Weighted average shares of common stock outstanding

52,132

51,506

Effect of dilutive securities - shares issuable under
stock-based compensation plan

1,727

2,118

Weighted average diluted shares of common stock outstanding

53,859

53,624

Basic earnings per share

$

1.58

$

1.48

Diluted earnings per share

$

1.53

$

1.42

Schedule of anti-dilutive shares outstanding

Quarter ended March 31, 

  ​ ​ ​

2026

  ​ ​ ​

2025

(in thousands except for weighted average exercise price)

Time-based RSUs

124

132

Performance-based RSUs (1)

327

597

Stock options (2)

271

147

Total anti-dilutive RSUs and stock options

722

876

Weighted average exercise price of anti-dilutive stock options (2)

$

97.92

$

95.84

(1)Certain performance-based RSUs were outstanding but not included in the computation of earnings per share because the performance thresholds included in such RSUs have not been achieved.
(2)Certain stock options were outstanding but not included in the computation of diluted earnings per share because the combination of the weighted-average exercise prices and average unamortized stock compensation cost exceeded the average market price of the Company’s common stock for the quarter.