Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Shareholders’ equity:
Allowance for credit loss	$ 79,059	$ 80,013
Common shares, par value (in dollars per share)	$ 1.25	$ 1.25
Common stock, shares authorized (in shares)	305,000	305,000
Common shares, shares issued (in shares)	176,793	176,793
Treasury shares (in shares)	45,688	45,885