Benefit Plans and Other Postretirement Benefits, Projected Benefit Payments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Pension Plans
Defined Benefit Plan, Gross Projected Benefit Payments [Abstract]
2014	$ 21,677
2015	14,257
2016	13,420
2017	13,851
2018	12,983
2019-2023	64,935
Postretirement Benefit Plan
Defined Benefit Plan, Gross Projected Benefit Payments [Abstract]
2014	1,491
2015	1,459
2016	1,444
2017	1,384
2018	1,357
2019-2023	6,229
Expected Medicare Part D Subsidies [Abstract]
2014	27
2015	25
2016	24
2017	20
2018	18
2019-2023	82
Defined Benefit Plan, Net Projected Benefit Payments [Abstract]
2014	1,464
2015	1,434
2016	1,420
2017	1,364
2018	1,339
2019-2023	$ 6,147

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The amount of the benefits expected to be paid, net of the prescription drug subsidy receipts expected to be received in the five fiscal years thereafter (the aggregate net amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position).