Other Assets and Accrued Liabilities - Restructuring Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Reserve [Roll Forward]
Expense	$ 1,727	$ 0	$ 0
Workforce Reduction Program
Restructuring Reserve [Roll Forward]
Beginning balance	0
Expense	3,862
Payments	(2,101)
Ending balance	1,761	$ 0
Workforce Reduction Program | Discontinued Operations
Restructuring Reserve [Roll Forward]
Expense	2,200
Payments	(1,400)
Workforce Reduction Program | Continuing Operations
Restructuring Reserve [Roll Forward]
Expense	1,700
Payments	$ (700)