Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	145,000,000	145,000,000
Common stock, shares issued (in shares)	98,638,673	98,615,105
Treasury stock, shares (in shares)	19,813,055	19,933,055
Common Stock
Common stock, shares issued (in shares)	98,638,673	98,615,105
Restricted Stock Awards | Common Stock
Unvested stock awards (in shares)	1,329,340	2,047,130