Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Restructuring Charges (Narrative) (Details) $ in Thousands	12 Months Ended
Restructuring Charges (Narrative) (Details) $ in Thousands	Dec. 31, 2020 USD ($) number_of_employees	Dec. 31, 2019 USD ($) number_of_employees	Dec. 31, 2018 USD ($) number_of_employees
Restructuring Cost and Reserve [Line Items]
Asset impairments	$ 6,950	$ 834	$ 96
2020 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs	$ 8,171
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees	648
2019 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs		$ 6,449
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees		468
2018 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs			$ 2,815
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees			490
Americas [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairments	$ 5,700
Americas [Member] \| 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs	$ 6,977
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees	421
Americas [Member] \| 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs		$ 4,499
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees		386
Americas [Member] \| 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs			$ 2,496
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees			432
Asia [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairments	$ 1,000
Asia [Member] \| 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs	$ 1,181
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees	210
Asia [Member] \| 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs		$ 1,950
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees		81
Asia [Member] \| 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs			$ 274
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees			23
Europe [Member] \| 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs	$ 13
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees	17
Europe [Member] \| 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees		1
Europe [Member] \| 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination costs			$ 45
Number of employees reduced in connection with workforce of certain facilities \| number_of_employees			35