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Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
AOCI before tax, beginning balance | $ (3,298) | $ (6,112)
Accumulated other comprehensive income, tax, beginning balance | (837) | (721)
Accumulated other comprehensive income, beginning balance | (2,461) | (5,391)
Adjustment to pension benefit liability, taxes | 10 | 7
Other comprehensive income (loss), net of tax | 3,225 | (5,880)
AOCI before tax, ending balance | (63) | (11,985)
Accumulated other comprehensive income, tax, ending balance | (827) | (714)
Accumulated other comprehensive income, ending balance | 764 | (11,271)
Accumulated Translation Adjustment |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
AOCI before tax, beginning balance | (872) | (4,173)
Other comprehensive income adjustments | 3,198 | (5,898)
Other comprehensive income (loss), net of tax | 3,198 | (5,898)
AOCI before tax, ending balance | 2,326 | (10,071)
Accumulated Defined Benefit Plans Adjustment |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Other comprehensive income adjustments | 37 | 25
Other comprehensive income (loss), net of tax | 27 | 18
Minimum post retirement benefit plan adjustments | Accumulated Defined Benefit Plans Adjustment |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
AOCI before tax, beginning balance | (2,426) | (1,939)
Other comprehensive income adjustments | 37 | 25
AOCI before tax, ending balance | $ (2,389) | $ (1,914)

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- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). + References No definition available. + Details
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(4)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(a)(3)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(ii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580 + Details
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