Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Allowance for doubtful accounts	$ 85,444	$ 79,059
Contract asset, allowance for doubtful accounts	3,997	3,404
Accumulated depreciation on property, plant and equipment	1,173,858	1,142,667
Other assets, allowance for credit loss	$ 65,940	$ 66,081
Shareholders’ equity:
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, authorized (in shares)	1	1
Common shares, shares issued (in shares)	176,793,000	176,793,000
Common shares, par value (in dollars per share)	$ 1.25	$ 1.25
Common shares, shares authorized (in shares)	305,000,000	305,000,000
Treasury shares (in shares)	45,616,000	45,688,000