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Equity (Tables)
12 Months Ended
Dec. 31, 2022
Equity  
Summary of Changes in Accumulated Other Comprehensive Loss by Component

Changes in accumulated other comprehensive loss by component consisted of the following (amounts in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

    

​

​

    

Other-Than-

    

​

    

​

​

​

​

Minimum

​

Temporary

​

​

​

​

​

​

​

Pension

​

Impairment of

​

Interest Rate

​

​

​

​

​

Liability

​

Investment

​

Derivatives

​

Total

Balance, December 31, 2019

​

$

(23,916)

​

$

(5,877)

​

$

1,634

​

$

(28,159)

Losses arising during period

​

 

(2,901)

​

 

—

​

 

(39,958)

​

 

(42,859)

Amounts reclassified from accumulated other comprehensive loss

​

 

194

​

 

210

​

 

10,505

​

 

10,909

Net other comprehensive income (loss)

​

 

(2,707)

​

 

210

​

 

(29,453)

​

 

(31,950)

Transition adjustment related to adoption of ASU 2016-13

​

​

—

​

​

2,158

​

​

—

​

​

2,158

Balance, December 31, 2020

​

$

(26,623)

​

$

(3,509)

​

$

(27,819)

​

$

(57,951)

Gains arising during period

​

 

10,314

​

 

—

​

 

1,955

​

 

12,269

Amounts reclassified from accumulated other comprehensive loss

​

 

(110)

​

 

211

​

 

16,501

​

 

16,602

Net other comprehensive income

​

 

10,204

​

 

211

​

 

18,456

​

 

28,871

Balance, December 31, 2021

​

$

(16,419)

​

$

(3,298)

​

$

(9,363)

​

$

(29,080)

Gains (losses) arising during period

​

 

(1,428)

​

 

—

​

 

16,007

​

 

14,579

Amounts reclassified from accumulated other comprehensive loss

​

 

(174)

​

​

211

​

​

3,541

​

 

3,578

Net other comprehensive income (loss)

​

 

(1,602)

​

 

211

​

 

19,548

​

 

18,157

Balance, December 31, 2022

​

$

(18,021)

​

$

(3,087)

​

$

10,185

​

$

(10,923)