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Other Liabilities (Narrative) (Details) - USD ($) | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 28, 2018 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Aug. 29, 2014
Other Liabilities [Line Items] |  |  |  |  |
Accrued pension liability |  | $ 4,544,000 |  | $ 4,670,000 | $ 7,500,000
Service cost |  | 0 | $ 0 |  |
Interest cost |  | 51,000 | 45,000 |  |
Actuarial loss (gain) |  | 51,000 | $ 52,000 |  |
Benefit obligation |  | $ 10,200,000 |  |  |
Discount rate |  | 4.25% |  |  |
Discount term |  | 15 years |  |  |
Monthly estate payment amount |  | $ 57,000 |  |  |
Discounted value |  | 2,700,000 |  |  |
Accumulated prior service cost |  | $ 3,100,000 |  |  |
Accumulated prior service cost amortization period |  | 15 years |  |  |
Accrued pension costs included in other liabilities |  | $ 5,200,000 |  |  |
Payment related to annuity | $ 2,400,000 |  |  |  |
Payment period |  | 42 months |  |  |
Supplemental Executive Retirement Plans [Member] |  |  |  |  |
Other Liabilities [Line Items] |  |  |  |  |
Accrued pension liability |  |  |  |  | $ 7,600,000

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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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