Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign exchange gains (losses)	$ (5.3)	$ 8.8	$ 0.8