Pension Plan (Details) - Weighted average asset allocations by asset category	Dec. 31, 2022	Dec. 31, 2021
Pension Plan (Details) - Weighted average asset allocations by asset category [Line Items]
Total pension plan assets	100.00%	100.00%
Equity And Index Funds [Member]
Pension Plan (Details) - Weighted average asset allocations by asset category [Line Items]
Total pension plan assets	69.00%	68.80%
Fixed Income Funds [Member]
Pension Plan (Details) - Weighted average asset allocations by asset category [Line Items]
Total pension plan assets	31.00%	31.20%