Property and Equipment (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property and Equipment [Abstract]
Property and equipment		$ 819,214	$ 818,496
Less: accumulated depreciation		(365,540)	(350,315)
Property and equipment, net		453,674	468,181
Depreciation expense		62,900	62,500	$ 61,700
Impairment charges		13,700
Land [Member]
Property and Equipment [Abstract]
Property and equipment		45,027	45,242
Buildings [Member]
Property and Equipment [Abstract]
Property and equipment		281,192	278,779
Construction in Progress [Member]
Property and Equipment [Abstract]
Property and equipment	[1]	44,021	34,954
Furniture and Fixtures [Member]
Property and Equipment [Abstract]
Property and equipment		147,786	146,413
Computers and Equipment [Member]
Property and Equipment [Abstract]
Property and equipment		162,746	137,914
Leasehold Improvements [Member]
Property and Equipment [Abstract]
Property and equipment		129,675	164,963
Scanners [Member]
Property and Equipment [Abstract]
Property and equipment		6,746	8,119
Vehicles [Member]
Property and Equipment [Abstract]
Property and equipment		2,021	2,112
Internal-Use Software Development Costs [Member]
Property and Equipment [Abstract]
Property and equipment		$ 11,000	$ 13,600

[1] Construction in progress includes $11.0 million and $13.6 million as of December 31, 2021 and 2020, respectively, of eligible capitalized internal-use software development costs which will be reclassified to computers and equipment when placed into service.