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Property, Plant and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Property, Plant and Equipment, net |  |  |
Property, plant and equipment, gross | $ 294,335 | $ 282,688 |
Accumulated depreciation and amortization | (207,757) | (190,007) |
Property, plant and equipment, net | 86,578 | 92,681 |
Depreciation expense | 25,200 | 24,700 | $ 24,200
Land |  |  |
Property, Plant and Equipment, net |  |  |
Property, plant and equipment, gross | 2,762 | 2,724 |
Building and improvements |  |  |
Property, Plant and Equipment, net |  |  |
Property, plant and equipment, gross | $ 24,787 | 25,731 |
Building and improvements | Minimum |  |  |
Property, Plant and Equipment, net |  |  |
Useful Life | 30 years |  |
Building and improvements | Maximum |  |  |
Property, Plant and Equipment, net |  |  |
Useful Life | 40 years |  |
Office furniture and equipment |  |  |
Property, Plant and Equipment, net |  |  |
Property, plant and equipment, gross | $ 16,620 | 16,980 |
Office furniture and equipment | Minimum |  |  |
Property, Plant and Equipment, net |  |  |
Useful Life | 5 years |  |
Office furniture and equipment | Maximum |  |  |
Property, Plant and Equipment, net |  |  |
Useful Life | 8 years |  |
Machinery and equipment |  |  |
Property, Plant and Equipment, net |  |  |
Property, plant and equipment, gross | $ 250,166 | $ 237,253 |
Machinery and equipment | Minimum |  |  |
Property, Plant and Equipment, net |  |  |
Useful Life | 5 years |  |
Machinery and equipment | Maximum |  |  |
Property, Plant and Equipment, net |  |  |
Useful Life | 7 years |  |

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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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