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Discontinued Operations (Income from Discontinued Operations) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Income from discontinued operations before taxes $ 4,931 $ 0 $ 5,296
Provision for income taxes 1,143 0 178
Income from discontinued operations 3,788 0 5,118
AS&O Product Line | Discontinued Operations, Held-for-sale      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Gain on sale of discontinued operations 0 0 (4,974)
Other income, net (4,931) 0 (322)
Income from discontinued operations before taxes 4,931 0 5,296
Provision for income taxes 1,143 0 178
Income from discontinued operations $ 3,788 $ 0 $ 5,118