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Retirement Benefits (Schedule of Estimated Remaining Cash Contributions) (Details)
$ in Thousands
Jun. 30, 2022
USD ($)
Other Postretirement Benefit Plans [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Estimated future employer contributions in the current fiscal year $ 1,420
United Kingdom | Pension Plan [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Estimated future employer contributions in the current fiscal year 332
Germany [Member] | Pension Plan [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Estimated future employer contributions in the current fiscal year $ 201