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Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2017
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Cost | Components of the net periodic benefit cost of the plan for the three and nine months ended September 30, 2017 and 2016 were as follows (in thousands):
| Three Months Ended |  | Nine Months Ended
| September 30, 2017 |  | September 30, 2016 |  | September 30, 2017 |  | September 30, 2016
Service cost | $ | — |  |  | $ | 102 |  |  | $ | — |  |  | $ | 307 |
Interest cost | 21 |  |  | 83 |  |  | 62 |  |  | 249 |
Expected return on plan assets | (9 | ) |  | (74 | ) |  | (27 | ) |  | (223 | )
Recognized net actuarial loss | — |  |  | 21 |  |  | — |  |  | 63 |
Net periodic benefit cost | $ | 12 |  |  | $ | 132 |  |  | $ | 35 |  |  | $ | 396 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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