Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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- 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.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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COMPONENTS OF THE COMPANY'S CONSOLIDATED BALANCE SHEETS Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	$ 317,020	$ 309,303
Accumulated depreciation	200,401	195,186
Depreciation	$ 19,190	$ 18,918	$ 18,374
Property and Equipment [Member] \| Geographic Concentration Risk [Member]
Property, Plant and Equipment [Line Items]
Concentration Risk, Percentage	10.00%	10.00%	10.00%
Property and Equipment [Member] \| Geographic Concentration Risk [Member] \| United States of America
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	$ 160,700	$ 167,600	$ 159,500
Property and Equipment [Member] \| Geographic Concentration Risk [Member] \| THAILAND
Property, Plant and Equipment [Line Items]
Concentration Risk, Percentage	14.00%	12.00%	12.00%
Land
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	$ 21,790	$ 20,288
Construction-in-progress
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	18,604	21,696
Building and improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	55,785	53,610
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	168,576	160,028
Computer software and hardware and office furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, Gross	$ 52,265	$ 53,681
Minimum [Member] \| Building and improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	4 years	4 years	4 years
Minimum [Member] \| Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	2 years	2 years	2 years
Minimum [Member] \| Computer software and hardware and office furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	4 years	4 years	4 years
Maximum [Member] \| Building and improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	40 years	40 years	40 years
Maximum [Member] \| Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	8 years	8 years	8 years
Maximum [Member] \| Computer software and hardware and office furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	7 years	7 years	7 years