Note 17 - Business Segment Information - Reconciliation of Segment Gross (Loss) Profit to Consolidated Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Gross Profit, Total	$ 116,946	$ 88,343	$ 180,264	$ 112,142
Selling, general and administrative expenses	74,069	78,023	149,797	151,239
Goodwill, Impairment Loss	0	0	0	24,413
Other costs (see Note 3)	5,953	13,659	81,788	18,824
Gain on sales of property and equipment (see Note 12)	(31,636)	(1,190)	(34,190)	(1,813)
Total other (income) expense	(2,806)	606	(719)	9,482
Income (loss) before provision for (benefit from) income taxes	71,366	(2,755)	(16,412)	(90,003)
Operating Segments [Member]
Gross Profit, Total	$ 116,946	$ 88,343	$ 180,264	$ 112,142