CONSOLIDATED STATEMENTS OF CONDITION - (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	45,118,930	47,056,777
Common stock, shares outstanding (in shares)	45,118,930	47,056,777