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Dispositions (Narrative) (Details) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
Dispositions (Narrative) (Details) - USD ($) $ in Thousands	Jan. 01, 2021	Dec. 31, 2020	Nov. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets				$ 1,554	$ 1,620	$ 333
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Australia ODM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets			$ 685
Carrying value of assets			$ 1,482
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| Easyway
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets		$ 79
Carrying value of assets		$ 3,806		3,806
Loss on disposition				$ 4,524
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations \| GIBBSCam Cimatron \| Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets	$ 64,200
Ownership interest disposed of	100.00%
Cash amounts transferred	$ 9,161