CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	3,000,000	3,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	75,300,000	75,300,000
Common stock, shares outstanding (in shares)	74,100,000	74,000,000
Treasury stock, at cost (in shares)	1,200,000	1,300,000