The following table presents net income, the weighted average common shares used in calculating basic EPS and those used in calculating diluted EPS for each period presented below. Diluted EPS reflects the incremental common shares from common shares issuable upon vesting of performance share units (“PSUs”) and the purchase of shares under the Employee Stock Purchase Plan (the “ESPP”) using the treasury stock method. The outstanding restricted stock units (“RSUs”) have non-forfeitable rights to dividend equivalents and are therefore included in calculating basic and diluted EPS under the two-class method.


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Numerator
Net income	$	298.6	$	235.3	$	572.7	$	381.9
Less: Earnings allocated to participating securities	(2.3)		(2.1)		(4.6)		(3.5)
Net income used in basic and diluted per common share calculations	$	296.3	$	233.2	$	568.1	$	378.4

Denominator
Weighted average common shares outstanding used in basic per common share calculations	49,520,710		50,675,804		49,611,108		50,737,072
Incremental common shares from:
PSUs	271,103		393,648		432,056		468,222
ESPP	39,603		42,899		39,603		42,899
Weighted average common shares outstanding used in diluted per common share calculations	49,831,416		51,112,351		50,082,767		51,248,193

Earnings per common share – Basic	$	5.98	$	4.60	$	11.45	$	7.46
Earnings per common share – Diluted	$	5.95	$	4.56	$	11.34	$	7.38

There were no anti-dilutive shares for the three and six months ended June 30, 2026. Average PSUs totaling 50,586 and 29,916 for the three and six months ended June 30, 2025, respectively, were anti-dilutive and thus not included in the computation of diluted EPS under the treasury stock method.