XML 44 R31.htm IDEA: XBRL DOCUMENT
v3.19.2

Employee Benefit Plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Pension Benefits [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Components of Net Periodic Benefit Cost |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | Three Months Ended |  | Six Months Ended
﻿ | June 30, |  | June 30,
﻿Pension Benefits | 2019 |  | 2018 |  | 2019 |  | 2018
﻿Interest cost | $ | 466 |  | $ | 428 |  | $ | 932 |  | $ | 855
﻿Expected return on plan assets |  | (555) |  |  | (711) |  |  | (1,110) |  |  | (1,422)
﻿Amortization of unrecognized net loss |  | 137 |  |  | 113 |  |  | 274 |  |  | 226
﻿ | $ | 48 |  | $ | (170) |  | $ | 96 |  | $ | (341)
﻿
Postretirement Benefit Plan [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Components of Net Periodic Benefit Cost |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | Three Months Ended |  | Six Months Ended
﻿ | June 30, |  | June 30,
﻿Postretirement Benefit Plan | 2019 |  | 2018 |  | 2019 |  | 2018
﻿Service cost | $ | 5 |  | $ | 8 |  | $ | 10 |  | $ | 16
﻿Interest cost |  | 45 |  |  | 45 |  |  | 90 |  |  | 90
﻿Amortization of prior service cost |  | 4 |  |  | 4 |  |  | 8 |  |  | 8
﻿Amortization of unrecognized net (gain) loss |  | (97) |  |  | (70) |  |  | (194) |  |  | (140)
﻿ | $ | (43) |  | $ | (13) |  | $ | (86) |  | $ | (26)
﻿

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems
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

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |