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Retirement Plans (Tables)
6 Months Ended
Jun. 30, 2024
Retirement Benefits [Abstract]  
Components Of Net Periodic Pension (Income) Cost
The components of net periodic pension (income) cost of the UK Plan for the three and six months ended June 30, 2024 and 2023 were as follows (in thousands): 
 
For the three months ended
June 30,
For the six months ended
June 30,
 2024202320242023
Interest cost$2,362 $2,451 $4,738 $4,827 
Expected return on plan assets(3,213)(2,878)(6,445)(5,669)
Amortization of unrecognized loss648 658 1,301 1,297 
Net periodic pension (income) cost
$(203)$231 $(406)$455