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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2026
Earnings Per Share  
Schedule of computation of basic and diluted earnings per common share

Three Months Ended

March 31,

(Dollars and shares in thousands, except for per share amounts)

  ​ ​ ​

2026

  ​ ​ ​

2025

Basic earnings per common share:

  ​ ​ ​

  ​ ​ ​

Net income

$

225,820

$

89,080

Weighted-average basic common shares

98,544

101,410

Basic earnings per common share

$

2.29

$

0.88

Diluted earnings per common share:

Net income

$

225,820

$

89,080

Weighted-average basic common shares

98,544

101,410

Effect of dilutive securities

378

419

Weighted-average dilutive shares

98,922

101,829

Diluted earnings per common share

$

2.28

$

0.87