Stockholders' Equity and Earnings Per Share (Authorized Capital Stock) (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Treasury Stock (in shares)	364,893	0	0
Shares Outstanding Class A
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	70,000,000	70,000,000
Common stock issued during period (in shares)	169,000	32,000
Shares Outstanding Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Class B Common converted to Class A Common (in shares)	345,000	387,000