Employee Benefit Plans (Schedule of Reconciliation of Balances in AOCI) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net gain (loss) arising during period	$ (5,171)	$ 8,765	$ 13,975
Pension Plan [Member]
Accumulated other comprehensive loss at beginning of fiscal year	2,183	(2,063)
Net gain (loss) arising during period	(5,436)	6,910
Prior service cost
Transition Obligation
Amortization of unrecognized actuarial loss		49
Amortization of prior service cost and transition obligation
Tax expense (benefit) of changes during the year, net	2,120	(2,713)
Accumulated other comprehensive gain (loss) at end of fiscal year	$ (1,133)	$ 2,183

The before tax amount of amortization of prior service cost and transition obligation.

No definition available.

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- Definition

The before tax amount of unrecognized actuarial loss.

+ References

No definition available.

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The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

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Amount before tax, after reclassification adjustments, of prior service cost (credit) that has not been recognized in the income statement.

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Amount of tax (expense) benefit, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity.

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Amount before tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income (loss) for net transition asset (obligation) related to pension and other postretirement benefit plans.

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