Note 15 - Stock-based Compensation - Fair Value of Stock-based Award on the Date of Grant (Details)						1 Months Ended			12 Months Ended
	Mar. 01, 2022	Dec. 31, 2020	Nov. 03, 2020	Jul. 01, 2020	Jun. 12, 2020	Nov. 30, 2022	Nov. 30, 2021	May 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Risk-free interest rates									1.70%	0.70%	0.40%
Expected lives (in weighted average years) (Year)									5 years 3 months 18 days	3 years 9 months 18 days	5 years 9 months 18 days
Dividend yield									0.70%	0.60%	0.60%
Expected volatility (weighted average)									34.60%	36.70%	28.80%
Weighted average forfeiture rate									10.20%	6.10%	8.20%
November 2022 RSUs [Member]
Dividend yield						0.56%
November 2022 RSUs [Member] | Minimum [Member]
Risk-free interest rates						4.13%
Expected lives (in weighted average years) (Year)						2 years
Expected volatility (weighted average)						43.17%
November 2022 RSUs [Member] | Maximum [Member]
Risk-free interest rates						4.38%
Expected lives (in weighted average years) (Year)						3 years
Expected volatility (weighted average)						40.57%
March 2022 SARs, RSUs, PSUs [Member]
Dividend yield	0.67%
March 2022 SARs, RSUs, PSUs [Member] | Minimum [Member]
Risk-free interest rates	1.31%
Expected lives (in weighted average years) (Year)	2 years
Expected volatility (weighted average)	32.85%
March 2022 SARs, RSUs, PSUs [Member] | Maximum [Member]
Risk-free interest rates	1.62%
Expected lives (in weighted average years) (Year)	6 years
Expected volatility (weighted average)	46.07%
November 2021 RSUs [Member]
Expected lives (in weighted average years) (Year)							1 year
Dividend yield							0.65%
Expected volatility (weighted average)							43.26%
November 2021 RSUs [Member] | Minimum [Member]
Risk-free interest rates							0.14%
November 2021 RSUs [Member] | Maximum [Member]
Risk-free interest rates							0.16%
December 2020 SARs, RSUs and PSUs [Member]
Dividend yield		0.61%
December 2020 SARs, RSUs and PSUs [Member] | Minimum [Member]
Risk-free interest rates		0.13%
Expected lives (in weighted average years) (Year)		2 years
Expected volatility (weighted average)		37.68%
December 2020 SARs, RSUs and PSUs [Member] | Maximum [Member]
Risk-free interest rates		0.51%
Expected lives (in weighted average years) (Year)		6 years
Expected volatility (weighted average)		30.15%
November 2020 SARs and RSUs [Member]
Dividend yield			0.61%
November 2020 SARs and RSUs [Member] | Minimum [Member]
Risk-free interest rates			0.12%
Expected lives (in weighted average years) (Year)			1 year
Expected volatility (weighted average)			45.20%
November 2020 SARs and RSUs [Member] | Maximum [Member]
Risk-free interest rates			0.44%
Expected lives (in weighted average years) (Year)			6 years
Expected volatility (weighted average)			29.40%
June 2020 SARs, RSUs and PSUs [Member]
Risk-free interest rates					0.00%
Dividend yield				0.64%	0.64%
Expected volatility (weighted average)					0.00%
June 2020 SARs, RSUs and PSUs [Member] | Minimum [Member]
Risk-free interest rates				0.41%
Expected lives (in weighted average years) (Year)				2 years	2 years
Expected volatility (weighted average)				28.50%
June 2020 SARs, RSUs and PSUs [Member] | Maximum [Member]
Risk-free interest rates				0.17%
Expected lives (in weighted average years) (Year)				6 years	6 years
Expected volatility (weighted average)				35.70%
May 2020 SARs, RSUs and PSUs [Member]
Risk-free interest rates								0.44%
Dividend yield								0.63%
May 2020 SARs, RSUs and PSUs [Member] | Minimum [Member]
Expected lives (in weighted average years) (Year)								2 years
Expected volatility (weighted average)
May 2020 SARs, RSUs and PSUs [Member] | Maximum [Member]
Expected lives (in weighted average years) (Year)								6 years
Expected volatility (weighted average)