XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Pensions and Other Postretirement Benefit Plans (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2017
Retirement Benefits [Abstract] |
Schedule of Net Periodic Benefit Plan Cost | The composition of the net periodic benefit plan cost for the nine months ended September 30, 2017 and 2016, was as follows:
| Pension plans | Other postretirement benefits
(in thousands) | 2017 | 2016 | 2017 | 2016
Components of net periodic benefit cost: |  |  |
Service cost | $1,960 |  | $1,991 |  | $183 |  | $190 |
Interest cost | 5,507 |  | 6,110 |  | 1,660 |  | 1,832 |
Expected return on assets | (6,004 | ) | (6,763 | ) | - |  | - |
Curtailment gain | - |  | (130 | ) | - |  | - |
Amortization of prior service cost/(credit) | 27 |  | 28 |  | (3,366 | ) | (3,366 | )
Amortization of net actuarial loss | 1,943 |  | 1,756 |  | 2,107 |  | 2,114 |
Net periodic benefit cost | $3,433 |  | $2,992 |  | $584 |  | $770 |

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 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
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration