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Net Periodic Pension Cost
9 Months Ended
Sep. 30, 2023
Net Periodic Pension Cost [Abstract]  
Net Periodic Pension Cost

16. Net Periodic Pension Cost

The following table details the net periodic pension cost incurred by period (in thousands):

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended

​

Nine Months Ended

​

 

September 30, 

 

 

September 30, 

​

    

2023

    

2022

    

2023

    

2022

Interest cost

 

$

111

 

$

75

 

$

333

 

$

225

Amortization of net actuarial loss

​

​

31

​

​

27

​

​

93

​

​

79

Expected return on plan assets

​

​

(149)

​

​

(191)

​

​

(447)

​

​

(573)

Net periodic pension cost

 

$

(7)

 

$

(89)

 

$

(21)

 

$

(269)

Contributed amount

 

$

—

 

$

—

 

$

—

 

$

—

​