Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Held to maturity securities, fair value	$ 14,988	$ 19,680
SHAREHOLDERS' EQUITY:
Capital stock, par value (in dollars per share)	$ 1	$ 1
Capital stock, shares authorized (in shares)	150,000,000	150,000,000
Capital stock, shares issued (in shares)	100,204,832	100,204,832
Treasury stock, at cost (in shares)	3,772,175	3,283,175

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