Note 2 - Significant Accounting Policies - Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Accumulated depreciation and amortization	$ (705,675)	$ (640,577)
Total	1,278,207	1,203,719
Land [Member]
Property and equipment, gross	156,169	136,024
Building and Building Improvements [Member]
Property and equipment, gross	$ 552,965	495,808
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	$ 39,665	38,767
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	$ 92,762	87,090
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	$ 84,728	81,834
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	$ 103,611	96,319
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	$ 947,318	905,465
Vehicles [Member] \| Minimum [Member]
Property and equipment, estimated life (Year)	1 year
Vehicles [Member] \| Maximum [Member]
Property and equipment, estimated life (Year)	8 years
Construction in Progress [Member]
Property and equipment, gross	$ 6,664	$ 2,989

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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