Note 2 - Significant Accounting Policies - Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Accumulated depreciation and amortization	$ (902,031)	$ (858,405)
Total	1,615,635	1,488,086
Land [Member]
Property and equipment, gross	174,962	172,396
Building and Building Improvements [Member]
Property and equipment, gross	$ 616,521	$ 591,992
Building and Building Improvements [Member] | Minimum [Member]
Property and equipment, estimated life (Year)		10 years
Building and Building Improvements [Member] | Maximum [Member]
Property and equipment, estimated life (Year)	39 years
Leasehold Improvements [Member]
Property and equipment, gross	$ 47,518	$ 43,088
Leasehold Improvements [Member] | Minimum [Member]
Property and equipment, estimated life (Year)		2 years
Leasehold Improvements [Member] | Maximum [Member]
Property and equipment, estimated life (Year)	39 years
Machinery and Equipment [Member]
Property and equipment, gross	$ 120,689	$ 105,544
Machinery and Equipment [Member] | Minimum [Member]
Property and equipment, estimated life (Year)		5 years
Machinery and Equipment [Member] | Maximum [Member]
Property and equipment, estimated life (Year)	20 years
Furniture and Fixtures [Member]
Property and equipment, gross	$ 127,165	$ 111,242
Furniture and Fixtures [Member] | Minimum [Member]
Property and equipment, estimated life (Year)		3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property and equipment, estimated life (Year)	15 years
Transportation Equipment [Member]
Property and equipment, gross	$ 156,896	$ 135,425
Transportation Equipment [Member] | Minimum [Member]
Property and equipment, estimated life (Year)		3 years
Transportation Equipment [Member] | Maximum [Member]
Property and equipment, estimated life (Year)	15 years
Vehicles [Member]
Property and equipment, gross	$ 1,259,918	$ 1,155,767
Vehicles [Member] | Minimum [Member]
Property and equipment, estimated life (Year)		1 year
Vehicles [Member] | Maximum [Member]
Property and equipment, estimated life (Year)	10 years
Construction in Progress [Member]
Property and equipment, gross	$ 13,997	$ 31,037