Employee Benefit Plans (Details 5) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Combined benefits expected to be paid for all Company defined benefit plans
Medicare Part D Subsidy, 2015	$ (157)
Medicare Part D Subsidy, 2016	(180)
Medicare Part D Subsidy, 2017	(203)
Medicare Part D Subsidy, 2018	(233)
Medicare Part D Subsidy, 2019	(263)
Medicare Part D Subsidy, 2020-2024	(1,850)
Pension Benefits
Combined benefits expected to be paid for all Company defined benefit plans
2015	126,481
2016	371
2017	1,002
2018	1,241
2019	1,319
2020-2024	3,686
Expected Postretirement Benefit Payout
Combined benefits expected to be paid for all Company defined benefit plans
2015	1,431
2016	1,532
2017	1,628
2018	1,734
2019	1,846
2020-2024	$ 10,918

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Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of the prescription drug subsidy receipts to be received after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

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-Paragraph 1

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