XML 46 R31.htm IDEA: XBRL DOCUMENT v3.21.1

Postretirement benefits (Tables)

3 Months Ended

Mar. 31, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Components of net periodic benefit income

Postretirement benefit income is included in other income on the consolidated statements of comprehensive income (loss) and consisted of the following components:

						Quarter Ended March 31,
(in thousands)						2021						2020
Interest cost						$	242					$	478
Expected return on plan assets						(1,875)						(1,905)
Amortization of prior service credit						(355)						(355)
Amortization of net actuarial losses						407						575
Net periodic benefit income						$	(1,581)					$	(1,207)

X

- References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract
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=118255775&loc=d3e1928-114920

+ Details

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