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Regulatory Capital (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

    

March 31, 2020

    

December 31, 2019

 

Percent of

Percent of

 

    

Amount

    

Assets

    

Amount

    

Assets

 

 

(Dollars in thousands)

Tier I (leverage) capital:

 

  

 

  

 

  

 

  

Capital level

$

676,267

 

9.51

%  

$

680,749

 

9.65

%

Requirement to be well capitalized

 

355,552

 

5.00

 

352,581

 

5.00

Excess

 

320,715

 

4.51

 

328,168

 

4.65

Common Equity Tier I risk-based capital:

 

  

 

  

 

  

 

  

Capital level

$

676,267

 

12.48

%  

$

680,749

 

13.02

%

Requirement to be well capitalized

 

352,240

 

6.50

 

339,944

 

6.50

Excess

 

324,027

 

5.98

 

340,805

 

6.52

Tier 1 risk-based capital:

 

  

 

  

 

  

 

  

Capital level

$

676,267

 

12.48

%  

$

680,749

 

13.02

%

Requirement to be well capitalized

 

433,526

 

8.00

 

418,393

 

8.00

Excess

 

242,741

 

4.48

 

262,356

 

5.02

Total risk-based capital:

 

  

 

  

 

  

 

  

Capital level

$

703,130

 

12.98

%  

$

702,500

 

13.43

%

Requirement to be well capitalized

 

541,908

 

10.00

 

522,991

 

10.00

Excess

 

161,222

 

2.98

 

179,509

 

3.43

Holding Company  
Notes Tables  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

    

March 31, 2020

    

December 31, 2019

 

Percent of

Percent of

 

    

Amount

    

Assets

    

Amount

    

Assets

 

(Dollars in thousands)

 

Tier I (leverage) capital:

 

  

 

  

 

  

 

  

Capital level

$

610,898

 

8.59

%  

$

615,500

 

8.73

%

Requirement to be well capitalized

 

355,470

 

5.00

 

352,581

 

5.00

Excess

 

255,428

 

3.59

 

262,919

 

3.73

Common Equity Tier I risk-based capital:

 

  

 

  

 

  

 

  

Capital level

$

567,306

 

10.47

%  

$

572,651

 

10.95

%

Requirement to be well capitalized

 

352,184

 

6.50

 

339,929

 

6.50

Excess

 

215,122

 

3.97

 

232,722

 

4.45

Tier 1 risk-based capital:

 

  

 

  

 

  

 

  

Capital level

$

610,898

 

11.28

%  

$

615,500

 

11.77

%

Requirement to be well capitalized

 

433,458

 

8.00

 

418,374

 

8.00

Excess

 

177,440

 

3.28

 

197,126

 

3.77

Total risk-based capital:

 

  

 

  

 

  

 

  

Capital level

$

712,761

 

13.16

%  

$

712,251

 

13.62

%

Requirement to be well capitalized

 

541,822

 

10.00

 

522,967

 

10.00

Excess

 

170,939

 

3.16

 

189,284

 

3.62