For the Years Ended December 31,

($ in Thousands, except per share data)

2022

2021

2020

Net income

$

366,122

$

350,994

$

306,771

Preferred stock dividends

(11,500)

(17,111)

(18,358)

Net income available to common equity

$

354,622

$

333,883

$

288,413

Common shareholder dividends

$

(122,417)

$

(115,212)

$

(111,291)

Unvested share-based payment awards

(720)

(849)

(732)

Undistributed earnings

$

231,485

$

217,822

$

176,390

Undistributed earnings allocated to common shareholders

$

229,995

$

216,299

$

175,134

Undistributed earnings allocated to unvested share-based payment awards

1,490

1,523

1,256

Undistributed earnings

$

231,485

$

217,822

$

176,390

Basic

Distributed earnings to common shareholders

$

122,417

$

115,212

$

111,291

Undistributed earnings allocated to common shareholders

229,995

216,299

175,134

Total common shareholders earnings, basic

$

352,412

$

331,510

$

286,425

Diluted

Distributed earnings to common shareholders

$

122,417

$

115,212

$

111,291

Undistributed earnings allocated to common shareholders

229,995

216,299

175,134

Total common shareholders earnings, diluted

$

352,412

$

331,510

$

286,425

Weighted average common shares outstanding

149,162

150,773

153,005

Effect of dilutive common stock awards

1,334

1,214

637

Diluted weighted average common shares outstanding

150,496

151,987

153,642

Basic earnings per common share

$

2.36

$

2.20

$

1.87

Diluted earnings per common share

$

2.34

$

2.18

$

1.86