Commitments and Contingencies (Narrative) (Details) $ in Millions	Dec. 31, 2020 USD ($) claim	Dec. 31, 2019 claim	Dec. 31, 2018 claim	Dec. 31, 2017 claim	Dec. 31, 2016 claim	Dec. 31, 2015 claim	Dec. 31, 2014 claim
Loss Contingencies [Line Items]
Number of pending claims	3,615
Brandon Drying Fabrics, Inc.
Loss Contingencies [Line Items]
Number of pending claims	12
Asbestos Litigation
Loss Contingencies [Line Items]
Number of pending claims	3,615	3,708	3,684	3,730	3,745	3,791	3,821
Total resolved claims, by means of settlement or dismissal	37,949
Total cost of resolution | $	$ 10.4
Resolution costs paid by insurance carrier	100.00%
Confirmed insurance coverage | $	$ 140.0
Asbestos Litigation | Brandon Drying Fabrics, Inc.
Loss Contingencies [Line Items]
Total resolved claims, by means of settlement or dismissal	7,710
Resolution costs paid by insurance carrier	100.00%