Equipment and Other Fixed Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Equipment and other fixed assets, gross	$ 912,489		$ 870,267
Less accumulated depreciation	(409,066)		(383,188)
Equipment and other fixed assets, net	503,423		487,079
Depreciation expense	83,800	$ 67,100
Patient medical equipment
Property, Plant and Equipment [Line Items]
Equipment and other fixed assets, gross	774,554		747,985
Computers and Software
Property, Plant and Equipment [Line Items]
Equipment and other fixed assets, gross	81,914		70,897
Delivery vehicles
Property, Plant and Equipment [Line Items]
Equipment and other fixed assets, gross	38,806		35,326
Other
Property, Plant and Equipment [Line Items]
Equipment and other fixed assets, gross	$ 17,215		$ 16,059