Employee Benefit Plans (Amounts Recognized in Consolidated Balance Sheets) (Details) - Employee Pension Plans [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Funded Status
Funded status	$ (32,760)	$ (34,677)
Net unfunded amounts recognized in Consolidated Balance Sheets consist of:
Current liabilities	(262)	(279)
Long-term liabilities	(32,498)	(34,398)
Total net unfunded amount recognized in Consolidated Balance Sheets	$ (32,760)	$ (34,677)

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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