XML 26 R15.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Employee Benefit Plans | 9 Months Ended
--- | ---
Sep. 30, 2018
Retirement Benefits [Abstract] |
Employee Benefit Plans | Employee Benefit Plans The following are components of the net periodic benefit cost for the pension and postretirement benefit plans maintained by the Company for the three and nine months ended September 30, 2018 and 2017:
| Pension Benefits
(in thousands) | Three months ended September 30, |  | Nine months ended September 30,
2018 |  | 2017 |  | 2018 |  | 2017
Interest cost | $ | 33 |  |  | $ | 38 |  |  | $ | 98 |  |  | $ | 116 |
Recognized net actuarial loss | 61 |  |  | 63 |  |  | 183 |  |  | 189 |
Benefit cost | $ | 94 |  |  | $ | 101 |  |  | $ | 281 |  |  | $ | 305 |
| Postretirement Benefits
(in thousands) | Three months ended September 30, |  | Nine months ended September 30,
2018 |  | 2017 |  | 2018 |  | 2017
Service cost | $ | 81 |  |  | $ | 81 |  |  | $ | 243 |  |  | $ | 310 |
Interest cost | 188 |  |  | 202 |  |  | 565 |  |  | 784 |
Amortization of prior service cost | (227 | ) |  | (228 | ) |  | (683 | ) |  | (228 | )
Benefit cost | $ | 42 |  |  | $ | 55 |  |  | $ | 125 |  |  | $ | 866 |

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
Name: | us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration