Note 7 - Segment Reporting - Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended					6 Months Ended
		Jun. 30, 2022	Jun. 30, 2022		Jun. 30, 2021		Jun. 30, 2022		Jun. 30, 2021
Total adjusted EBITDA			$ 271,462		$ 217,679		$ 467,875		$ 431,873
Interest expense		$ (10,235)	(10,235)		(7,721)		(19,789)		(15,444)
Depreciation and amortization			(39,098)		(21,229)		(77,559)		(39,466)
Non-cash write-down and other adjustments (1)	[1]		(4,607)		(1,173)		3,185		2,695
Non-cash share-based compensation expense (2)	[2]		(7,735)		(6,973)		(16,562)		(12,421)
Loss on extinguishment of debt		3,743	3,743	[3]	831	[3]	3,743	[3]	831	[3]
Transaction costs and credit facility fees (4)	[4]		(1,592)		(5,172)		(2,581)		(6,086)
Business optimization and other charges (5)	[5]		(1,590)		0		(2,749)		(159)
Other			601		(309)		890		(577)
Income before provision for income taxes		$ 203,463	203,463		174,271		348,967		359,584
Domestic [Member]
Total adjusted EBITDA			241,928		203,931		412,349		411,004
International [Member]
Total adjusted EBITDA			$ 29,534		$ 13,748		$ 55,526		$ 20,869

[1] Includes gains/losses on disposals of assets and sales of certain investments, unrealized mark-to-market adjustments on commodity contracts, certain foreign currency related adjustments, and certain purchase accounting and contingent consideration adjustments.

[2] Represents share-based compensation expense to account for stock options, restricted stock, and other stock awards over their respective vesting periods.

[3] Represents the non-cash write-off of original issue discount and deferred financing costs due primarily to a voluntary prepayment of Term Loan debt.

[4] Represents transaction costs incurred directly in connection with any investment, as defined in our credit agreement, equity issuance, debt issuance, or refinancing, together with certain fees relating to our senior secured credit facilities.

[5] The current year period predominantly represents severance and other non-recurring restructuring charges related to the suspension of operations at certain of our facilities.