Fixed Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 30, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,323,136	$ 1,274,269
Accumulated depreciation	(893,974)	(882,989)
Property, plant and equipment, net	429,162	391,280
Rental property and equipment	125,967	145,954
Accumulated depreciation	(91,193)	(107,519)
Rental property and equipment, net	34,774	38,435
Depreciation expense	132,000	127,000	$ 123,000
Shelton Facility
Property, Plant and Equipment [Line Items]
Term of operating leases				10 years
Assets held for sale	36,000
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	0	9,333
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	707,843	617,748
Capitalized software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	488,837	443,400
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 126,456	$ 203,788