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Note 15 - Share-based Compensation	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	15. Share-Based Compensation Our share-based compensation plans are described in Note 18 of our annual report on Form 10-K for the year ended December 31, 2020. During the three months ended June 30, 2021 and 2020, we recognized total share-based compensation expense of $3.9 million and less than $0.1 million, respectively. During the six months ended  June 30, 2021 and 2020, we recognized total share-based compensation expense of $7.0 million and $2.8 million, respectively. The total excess tax benefit recognized for share-based compensation arrangements during the six months ended June 30, 2021 and 2020 was $0.4 million and $0.3 million, respectively.

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- Definition

The entire disclosure for share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI http://asc.fasb.org/topic&trid=2228938

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