XML 25 R15.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Pension and Postretirement Benefits Other Than Pension Plans | 3 Months Ended
--- | ---
Mar. 31, 2018
Retirement Benefits [Abstract] |
Pension and Postretirement Benefits Other Than Pension Plans | 10. PENSION AND POSTRETIREMENT BENEFITS OTHER THAN PENSION PLANS: Net periodic pension (income) expense reflected in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):
|  | Three Months Ended |
|  | March 31, |
|  | 2018 |  |  | 2017 |
Interest cost |  | $ | 811 |  |  | $ | 914 |
Expected return on plan assets |  |  | (1,102 | ) |  |  | (1,036 | )
Amortization of net actuarial loss |  |  | 255 |  |  |  | 282 |
Total net periodic pension (income) expense |  | $ | (36 | ) |  | $ | 160 |
Net postretirement benefit income reflected in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):
|  | Three Months Ended |
|  | March 31, |
|  | 2018 |  |  | 2017 |
Interest cost |  | $ | 24 |  |  | $ | 26 |
Amortization of net actuarial loss |  |  | 64 |  |  |  | 57 |
Amortization of prior service credit |  |  | (328 | ) |  |  | (328 | )
Total net postretirement benefit income |  | $ | (240 | ) |  | $ | (245 | )

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