Restructuring and Other Related Charges (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	$ 0	$ 754,000	$ 0	$ 9,534,000
November 2020 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		800,000		9,500,000
November 2020 Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges				4,300,000
November 2020 Plan | A M C N I Reporting Unit | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		$ 800,000		$ 5,200,000