Note 17 - Business Segment Information - Reconciliation of Segment Gross (Loss) Profit to Consolidated Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Gross Profit, Total	$ 119,935	$ 125,997	$ 300,199	$ 238,139
Selling, general and administrative expenses	77,603	72,889	227,400	224,128
Goodwill, Impairment Loss	0	132,277	0	156,690
Other costs (see Note 3)	3,759	9,689	85,547	28,513
Gain on sales of property and equipment (see Note 12)	(5,159)	(3,057)	(39,349)	(4,870)
Total other expense, net	2,405	1,284	1,686	10,766
Income (loss) before provision for (benefit from) income taxes	41,327	(87,085)	24,915	(177,088)
Operating Segments [Member]
Gross Profit, Total	$ 119,935	$ 125,997	$ 300,199	$ 238,139