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Note 11 - Stockholders' Equity and Stock Incentive Plans - Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based compensation expense	$ 34,066	$ 37,773	$ 9,202
Restricted Stock Units (RSUs) [Member]
Share-based compensation expense	16,210	21,599	11,131
Performance Shares [Member]
Share-based compensation expense	16,432	14,883	(3,166)
Career Shares [Member]
Share-based compensation expense	$ 1,424	$ 1,291	$ 1,237

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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X

- Details

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X

- Details

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X

- Details

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