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Employee Benefit Plans (Details 3) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($)
Amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost |
Prior service cost | $ (355)
Net actuarial loss | 914
Pension Benefits |
Amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost |
Prior service cost | 0
Net actuarial loss | 146
Postretirement Benefits |
Amounts in accumulated other comprehensive loss that are expected to be recognized as components of net periodic benefit cost |
Prior service cost | (355)
Net actuarial loss | $ 768

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