XML 37 R25.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Pension Benefits (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Defined Benefit Plan [Abstract] |
Components of the net periodic benefit cost for the Pension Plans [Table Text Block] | The following table presents the components of the net periodic benefit cost for the Pension Plans:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (in thousands)
Service cost | $ | 1,683 |  |  | $ | 1,660 |  |  | $ | 5,048 |  |  | $ | 4,979 |
Interest cost | 657 |  |  | 673 |  |  | 1,967 |  |  | 2,017 |
Expected return on plan assets that reduces periodic pension benefit cost | (466 | ) |  | (561 | ) |  | (1,397 | ) |  | (1,683 | )
Amortization of prior service cost | 4 |  |  | 4 |  |  | 13 |  |  | 13 |
Amortization of net actuarial loss | 331 |  |  | 324 |  |  | 995 |  |  | 973 |
Net periodic benefit cost | $ | 2,209 |  |  | $ | 2,100 |  |  | $ | 6,626 |  |  | $ | 6,299 |

X
- References No definition available. + Details
Name: | us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration