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Share Based Compensation (Tables)	9 Months Ended
Share Based Compensation (Tables)	Sep. 30, 2021
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of share-based compensation expense in its Consolidated Statements of Income [Table Text Block]	Three Months Ended Nine Months Ended September 30, September 30, 2021 2020 2021 2020 Stock options $ 298 $ 353 $ 938 $ 1,138 Non-vested stock awards and restricted stock units 1,277 1,259 3,963 3,782 Non-elective and elective 401(k) matching contribution in stock — 910 1,553 2,072 Director stock ownership plan 241 243 660 337 Performance stock units 491 280 1,327 560 Annual incentive plan — 7,102 — 9,931 Total share-based compensation expense $ 2,307 $ 10,147 $ 8,441 $ 17,820
Schedule of Black-Scholes option pricing model and the assumptions [Table Text Block]	Number of options granted 25,250 Dividend yield 0.85 % Expected volatility 37.33 % Risk-free interest rate 0.60 % Expected term (years) 4.0