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Note 7 - Segment Reporting - Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Total adjusted EBITDA $ 196,413 $ 214,194
Interest expense (9,554) (7,723)
Depreciation and amortization (38,461) (18,237)
Non-cash write-down and other adjustments [1] 7,792 3,868
Non-cash share-based compensation expense [2] (8,827) (5,448)
Transaction costs and credit facility fees [3] (989) (914)
Business optimization and other charges [4] (1,159) (159)
Other 289 (268)
Income before provision for income taxes 145,504 185,313
Domestic [Member]    
Total adjusted EBITDA 170,421 207,073
International [Member]    
Total adjusted EBITDA $ 25,992 $ 7,121
[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 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.
[4] The current year period predominantly represents severance and other non-recurring restructuring charges related to the suspension of operations at certain of our facilities.