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Employee Benefit Plans (Schedule of Fair Value of Pension Plan Assets) (Details) - Pension Benefit Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair value of plan assets	$ 66,771	$ 69,215	$ 59,370
Fair Value, Level 1 [Member]
Fair value of plan assets	66,771	69,215
Fair Value, Level 2 [Member]
Fair value of plan assets
Fair Value, Level 3 [Member]
Fair value of plan assets
Equity Securities [Member]
Fair value of plan assets	8,683	10,930
Equity Securities [Member] | Fair Value, Level 3 [Member]
Fair value of plan assets
Mutual Funds [Member]
Fair value of plan assets	57,014	57,608
Mutual Funds [Member] | Fair Value, Level 1 [Member]
Fair value of plan assets	57,014	57,608
Mutual Funds [Member] | Fair Value, Level 2 [Member]
Fair value of plan assets
Mutual Funds [Member] | Fair Value, Level 3 [Member]
Fair value of plan assets
Money Market Funds [Member]
Fair value of plan assets	1,074	677
Money Market Funds [Member] | Fair Value, Level 1 [Member]
Fair value of plan assets	1,074	677
Money Market Funds [Member] | Fair Value, Level 2 [Member]
Fair value of plan assets
Money Market Funds [Member] | Fair Value, Level 3 [Member]
Fair value of plan assets
Equity Securities [Member] | Fair Value, Level 1 [Member]
Fair value of plan assets	8,683	10,930
Equity Securities [Member] | Fair Value, Level 2 [Member]
Fair value of plan assets

X

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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-Publisher FASB
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+ Details

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