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Derivative Financial Instruments (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($) derivative_instrument | Dec. 31, 2020 USD ($) | Dec. 31, 2019
Derivative [Line Items] |  |  |
Gross amount assets | $ 1,372 | $ 324 |
Foreign currency forward contracts | Derivatives Not Designated as Hedging Instruments |  |  |
Derivative [Line Items] |  |  |
Approximate number of derivatives per quarter | derivative_instrument | 10 |  |
Notional amount | $ 2,000 |  |
Foreign currency forward contracts | Cash Flow Hedges |  |  |
Derivative [Line Items] |  |  |
Approximate number of derivatives per quarter | derivative_instrument | 10 |  |
Notional amount | $ 6,000 |  |
Estimated term of reclassification from OCI to Income | 12 months | 12 months | 12 months
Offsetting derivative assets and liabilities |  |  |
Derivative [Line Items] |  |  |
Gross amount assets | $ 1,400 |  |
Gross amount liabilities | $ 300 |  |
Maximum | Foreign currency forward contracts |  |  |
Derivative [Line Items] |  |  |
Term of derivative contracts | 6 months |  |
Maximum | Foreign currency forward contracts | Derivatives Not Designated as Hedging Instruments |  |  |
Derivative [Line Items] |  |  |
Term of derivative contracts | 3 months |  |
Maximum | Foreign currency forward contracts | Cash Flow Hedges |  |  |
Derivative [Line Items] |  |  |
Term of derivative contracts | 6 months |  |

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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 + Details
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