Fixed Assets (Schedule of Fixed Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 678,367	$ 559,234
Less accumulated depreciation and amortization	312,058	236,358
Fixed assets, net	366,309	322,876
Land
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	23,868	22,962
Buildings and improvements
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	185,744	159,805
Leasehold improvements
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	23,012	16,132
Machinery and equipment
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	311,554	251,995
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	85,901	51,893
Construction in progress
Property, Plant and Equipment [Line Items]
Fixed assets, at cost	$ 48,288	$ 56,447
Minimum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Estimated useful life in years	10 years
Minimum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful life in years	3 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful life in years	3 years
Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life in years	3 years
Maximum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Estimated useful life in years	40 years
Maximum | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful life in years	10 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated useful life in years	15 years
Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life in years	8 years