Contingencies (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended	123 Months Ended	207 Months Ended	243 Months Ended
	Mar. 31, 2022 USD ($) claim	Dec. 31, 2021 claim	Mar. 31, 2022 USD ($) claim	Mar. 31, 2022 USD ($) claim	Mar. 31, 2022 USD ($) claim	Dec. 31, 2020 claim
Loss Contingencies [Line Items]
Number of pending claims	3,616		3,616	3,616	3,616
Subsidiaries | Brandon Drying Fabrics, Inc.
Loss Contingencies [Line Items]
Resolution costs paid by insurance carrier				100.00%
Number of pending claims	7,709		7,709	7,709	7,709
Loss contingency, damages paid, value | $					$ 15,000
New Claims			12
Asbestos Issue
Loss Contingencies [Line Items]
Total resolved claims, by means of settlement or dismissal	37,982		37,982	37,982	37,982
Total cost of resolution | $	$ 10,500		$ 10,500	$ 10,500	$ 10,500
Confirmed insurance coverage | $	$ 140,000		$ 140,000	$ 140,000	$ 140,000
Resolution costs paid by insurance carrier	100.00%
Number of pending claims	3,616	3,609	3,616	3,616	3,616	3,615
New Claims	9	26