Employee Benefit Plans (Amounts Recognized in Consolidated Balance Sheets) (Details) - Postretirement health care benefit plan - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amounts recognized in the consolidated balance sheets
Accrued expenses and other current liabilities	$ 1,242	$ 1,276
Other long-term liabilities	16,024	16,157
Net amount recognized	$ 17,266	$ 17,433