Dividends and Basic Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Dividends [Abstract]
Cash dividends declared per share of common stock (in dollars per share)	$ 0	$ 0
Basic Earnings per Common Share [Abstract]
Common stock equivalent shares (in shares)	0	0
Net Income	$ 14,122	$ 13,549
Weighted Average Number of Common Shares Outstanding (in shares)	793,504	784,438
Basic and Diluted Earnings Per Common Share (in dollars per share)	$ 17.80	$ 17.27

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

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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