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Accumulated Other Comprehensive Income
6 Months Ended
Jun. 30, 2023
Accumulated Other Comprehensive Income  
Accumulated Other Comprehensive Income

9.   Accumulated Other Comprehensive Income

The following tables summarize the changes, net of tax, within each classification of accumulated other comprehensive income/(loss) for the three and six months ended June 30, 2023 and 2022.

​

​

​

​

​

​

​

​

​

​

​

​

​

Unrealized

​

​

​

​

​

​

​

​

gains and

​

​

​

​

​

​

​

​

(Losses) on available-

​

2023

​

​

for-sale

​

Retirement

​

​

​

(Dollar amounts in thousands)

    

Securities

    

plans

    

Total

Beginning balance, April 1,

​

$

(114,658)

​

$

(10,931)

​

$

(125,589)

Change in other comprehensive income (loss) before reclassification

​

 

(15,808)

​

 

—

​

 

(15,808)

Amounts reclassified from accumulated other comprehensive income

​

 

—

​

 

147

​

 

147

Net current period other comprehensive income (loss)

​

 

(15,808)

​

 

147

​

 

(15,661)

Ending balance, June 30, 

​

$

(130,466)

​

$

(10,784)

​

$

(141,250)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Unrealized

​

​

​

​

​

​

​

​

gains and

​

​

​

​

​

​

​

​

(Losses) on available-

​

2023

​

​

for-sale

​

Retirement

​

​

​

(Dollar amounts in thousands)

    

Securities

    

plans

    

Total

Beginning balance, January 1,

​

$

(128,896)

​

$

(11,078)

​

$

(139,974)

Change in other comprehensive income (loss) before reclassification

​

 

(1,570)

​

 

—

​

 

(1,570)

Amounts reclassified from accumulated other comprehensive income

​

 

—

​

 

294

​

 

294

Net current period other comprehensive income (loss)

​

 

(1,570)

​

 

294

​

 

(1,276)

Ending balance, June 30, 

​

$

(130,466)

​

$

(10,784)

​

$

(141,250)

​

​

​

​

​

​

​

​

​

​

​

​

​

Unrealized

​

​

​

​

​

​

​

​

gains and

​

​

​

​

​

​

​

​

(Losses) on available-

​

2022

​

​

for-sale

​

Retirement

​

  

​

(Dollar amounts in thousands)

    

Securities

    

plans

    

Total

Beginning balance, April 1,

​

$

(53,240)

​

$

(17,785)

​

$

(71,025)

Change in other comprehensive income (loss) before reclassification

​

 

(55,919)

​

 

—

​

 

(55,919)

Amounts reclassified from accumulated other comprehensive income

​

 

—

​

 

314

​

 

314

Net current period other comprehensive income (loss)

​

 

(55,919)

​

 

314

​

 

(55,605)

Ending balance, June 30, 

​

$

(109,159)

​

$

(17,471)

​

$

(126,630)

​

​

​

​

​

​

​

​

​

​

​

​

​

Unrealized

​

​

​

​

​

​

​

​

gains and

​

​

​

​

​

​

​

​

(Losses) on available-

​

2022

​

​

for-sale

​

Retirement

​

  

​

(Dollar amounts in thousands)

    

Securities

    

plans

    

Total

Beginning balance, January 1,

​

$

15,674

​

$

(18,100)

​

$

(2,426)

Change in other comprehensive income (loss) before reclassification

​

 

(124,829)

​

 

—

​

 

(124,829)

Amounts reclassified from accumulated other comprehensive income

​

 

(4)

​

 

629

​

 

625

Net current period other comprehensive income (loss)

​

 

(124,833)

​

 

629

​

 

(124,204)

Ending balance, June 30, 

​

$

(109,159)

​

$

(17,471)

​

$

(126,630)

​

​

​

​

​

​

​

​

​

​

​

​

​

Balance at

​

Current Period

​

Balance at

(Dollar amounts in thousands)

    

4/1/2023

    

Change

    

6/30/2023

Unrealized gains (losses) on securities available-for-sale without other than temporary impairment

​

$

(116,844)

​

$

(15,827)

​

$

(132,671)

Unrealized gains (losses) on securities available-for-sale with other than temporary impairment

​

 

2,186

​

 

19

​

 

2,205

Total unrealized loss on securities available-for-sale

​

$

(114,658)

​

$

(15,808)

​

$

(130,466)

Unrealized gain (loss) on retirement plans

​

 

(10,931)

​

 

147

​

 

(10,784)

TOTAL

​

$

(125,589)

​

$

(15,661)

​

$

(141,250)

​

​

​

​

​

​

​

​

​

​

​

​

​

Balance at

​

Current Period

​

Balance at

(Dollar amounts in thousands)

    

1/1/2023

    

Change

    

6/30/2023

Unrealized gains (losses) on securities available-for-sale without other than temporary impairment

​

$

(131,135)

​

$

(1,536)

​

$

(132,671)

Unrealized gains (losses) on securities available-for-sale with other than temporary impairment

​

 

2,239

​

 

(34)

​

 

2,205

Total unrealized gain (loss) on securities available-for-sale

​

$

(128,896)

​

$

(1,570)

​

$

(130,466)

Unrealized gain (loss) on retirement plans

​

 

(11,078)

​

 

294

​

 

(10,784)

TOTAL

​

$

(139,974)

​

$

(1,276)

​

$

(141,250)

​

​

​

​

​

​

​

​

​

​

​

​

​

Balance at

​

Current Period

​

Balance at

(Dollar amounts in thousands)

    

4/1/2022

    

Change

    

6/30/2022

Unrealized gains (losses) on securities available-for-sale without other than temporary impairment

​

$

(55,888)

​

$

(55,586)

​

$

(111,474)

Unrealized gains (losses) on securities available-for-sale with other than temporary impairment

​

 

2,648

​

 

(333)

​

 

2,315

Total unrealized gain (loss) on securities available-for-sale

​

$

(53,240)

​

$

(55,919)

​

$

(109,159)

Unrealized loss on retirement plans

​

 

(17,785)

​

 

314

​

 

(17,471)

TOTAL

​

$

(71,025)

​

$

(55,605)

​

$

(126,630)

​

​

​

​

​

​

​

​

​

​

​

​

​

Balance at

​

Current Period

​

Balance at

(Dollar amounts in thousands)

    

1/1/2022

    

Change

    

6/30/2022

Unrealized gains (losses) on securities available-for-sale without other than temporary impairment

​

$

13,155

​

$

(124,629)

​

$

(111,474)

Unrealized gains (losses) on securities available-for-sale with other than temporary impairment

​

 

2,519

​

 

(204)

​

 

2,315

Total unrealized income (loss) on securities available-for-sale

​

$

15,674

​

$

(124,833)

​

$

(109,159)

Unrealized gain (loss) on retirement plans

​

 

(18,100)

​

 

629

​

 

(17,471)

TOTAL

​

$

(2,426)

​

$

(124,204)

​

$

(126,630)

​

​

​

​

​

​

​

​

​

    

Three Months Ended June 30, 2023

    

​

  

Details about accumulated

​

Amount reclassified from

​

​

Affected line item in

other comprehensive

​

accumulated other

​

​

the statement where

income components

    

comprehensive income

    

​

net income is presented

​

​

(in thousands)

​

​

​

Unrealized gains and losses

​

$

—

 

​

Net securities gains (losses)

on available-for-sale

​

 

—

 

​

Income tax expense

securities

​

$

—

 

​

Net of tax

​

​

​

​

​

​

​

Amortization of

​

$

(196)

(a)

​

Salary and benefits

retirement plan items

​

 

49

 

​

Income tax expense

​

​

$

(147)

 

​

Net of tax

Total reclassifications for the period

​

$

(147)

 

​

Net of tax

(a)Included in the computation of net periodic benefit cost. (see Footnote 7 for additional details).

​

​

​

​

​

​

​

​

​

    

Six Months Ended June 30, 2023

    

​

  

Details about accumulated

​

Amount reclassified from

​

​

Affected line item in

other comprehensive

​

accumulated other

​

​

the statement where

income components

    

comprehensive income

    

​

net income is presented

​

​

(in thousands)

​

​

​

Unrealized gains and losses

​

$

—

 

​

Net securities gains (losses)

on available-for-sale

​

 

—

 

​

Income tax expense

securities

​

$

—

 

​

Net of tax

​

​

​

​

​

​

​

Amortization of

​

$

(392)

(a)

​

Salary and benefits

retirement plan items

​

 

98

 

​

Income tax expense

​

​

$

(294)

 

​

Net of tax

Total reclassifications for the period

​

$

(294)

 

​

Net of tax

(a)Included in the computation of net periodic benefit cost. (see Footnote 7 for additional details).

​

​

​

​

​

​

​

​

​

​

Three Months Ended June 30, 2022

​

​

​

Details about accumulated

​

Amount reclassified from

​

​

Affected line item in

other comprehensive

​

accumulated other

​

​

the statement where

income components

    

comprehensive income

    

​

net income is presented

​

    

(in thousands)

    

​

​

Unrealized gains and losses

​

$

—

 

​

Net securities gains (losses)

on available-for-sale

​

 

—

 

​

Income tax expense

securities

​

$

—

 

​

Net of tax

​

​

​

​

​

​

​

Amortization of

​

$

(420)

(a)

​

Salary and benefits

retirement plan items

​

 

106

 

​

Income tax expense

​

​

$

(314)

 

​

Net of tax

Total reclassifications for the period

​

$

(314)

 

​

Net of tax

(a)Included in the computation of net periodic benefit cost. (see Footnote 7 for additional details).

​

​

​

​

​

​

​

​

​

​

​

Six Months Ended June 30, 2022

​

​

​

Details about accumulated

​

Amount reclassified from

​

​

Affected line item in

other comprehensive

​

accumulated other

​

​

the statement where

income components

    

comprehensive income

    

​

net income is presented

​

    

(in thousands)

    

​

​

Unrealized gains and losses

​

$

5

 

​

Net securities gains (losses)

on available-for-sale

​

 

(1)

 

​

Income tax expense

securities

​

$

4

 

​

Net of tax

​

​

​

​

​

​

​

Amortization of

​

$

(840)

(a)

​

Salary and benefits

retirement plan items

​

 

211

 

​

Income tax expense

​

​

$

(629)

 

​

Net of tax

Total reclassifications for the period

​

$

(625)

 

​

Net of tax

(a)Included in the computation of net periodic benefit cost. (see Footnote 7 for additional details).