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Retirement Plans (Tables)
6 Months Ended
Jun. 30, 2022
Retirement Benefits [Abstract]  
Components Of Net Periodic Pension Cost (Income)
The components of net periodic pension cost (income) of the UK Plan for the three and six months ended June 30, 2022 and 2021 were as follows (in thousands): 
 For the three months ended
June 30,
For the six months ended
June 30,
 2022202120222021
Interest cost$1,452 $1,350 $2,981 $2,686 
Expected return on plan assets(3,082)(3,223)(6,326)(6,415)
Amortization of unrecognized loss528 922 1,084 1,835 
Net periodic pension cost (income)$(1,102)$(951)$(2,261)$(1,894)