The price paid per share to immediately purchase the targeted number of shares on the date of executing the accelerated share repurchase agreement.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Gross number of share options (or share units) granted during the period.

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Amount of stock repurchase plan authorized.

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The number of shares at initial price for accelerated share repurchases.

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Note 22 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Millions								1 Months Ended	12 Months Ended
	Feb. 17, 2021	Jan. 15, 2021	Jan. 04, 2021	Oct. 28, 2020	Jul. 29, 2020	Apr. 29, 2020	Feb. 12, 2020	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Feb. 16, 2021
Accelerated Share Repurchases, Initial Price, Shares (in shares)									1,339,462
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)									936,843	920,398	958,332
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)									4 years
Common Stock, Dividends, Per Share, Declared (in dollars per share)				$ 0.27	$ 0.27	$ 0.27	$ 0.27
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)									163,441	167,231	207,041
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)									4 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)									50,736	51,792	46,705
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)		706,851
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.29
Subsequent Event [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		134,840
Subsequent Event [Member] \| Restricted Stock [Member] \| Graded Vesting Service Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		4 years
Subsequent Event [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		59,144
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
December 2020 Share Repurchase Program [Member]
Accelerated Share Repurchases, Purchase Price								$ 50
Accelerated Share Repurchases, Initial Price, Shares (in shares)								47,042
December 2020 Share Repurchase Program [Member] \| Subsequent Event [Member]
Accelerated Share Repurchases, Initial Price, Shares (in shares)			192,687
Accelerated Share Repurchases, Initial Price Paid Per Share (in dollars per share)			$ 207.59
Accelerated Share Repurchases, Settlement (Payment) or Receipt			$ 40
February 2021 Share Repurchase Program [Member] \| Subsequent Event [Member] \| Common Stock [Member]
Stock Repurchase Program, Authorized Amount												$ 300