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Stock Compensation Plans - Estimated Fair Value of Stock Options using Assumptions in Black-Scholes Model (Details)
3 Months Ended
Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Expected term (years) 7 years 6 months
Interest rate 1.29%
Volatility 41.28%
Dividend yield 6.54%