Restructuring and Long-Lived Asset Impairment - Long-Lived Asset Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-lived Asset Impairment
Long-lived asset impairment	$ 3,044	$ 12,353	$ 66,270
Leasehold improvements
Long-lived Asset Impairment
Long-lived asset impairment	721	2,374	20,766
Furniture and equipment
Long-lived Asset Impairment
Long-lived asset impairment	196	2,588	28,602
Buildings
Long-lived Asset Impairment
Long-lived asset impairment		1,461
Operating lease right-of-use assets
Long-lived Asset Impairment
Long-lived asset impairment	2,127	5,930	16,902
2019 Strategic Shift
Long-lived Asset Impairment
Long-lived asset impairment	1,399	12,289	57,438
Unrelated to 2019 Strategic Shift
Long-lived Asset Impairment
Long-lived asset impairment	$ 1,645	$ 64	$ 8,832