Earnings Per Share

9 Months Ended

Mar. 31, 2019

Basic earnings per share is computed using the weighted average number of shares outstanding during the period, while diluted earnings per share is calculated to reflect the potential dilution that would occur related to the issuance of capital stock under stock option grants, performance awards and restricted stock units. The difference between basic and diluted earnings per share relates solely to the effect of capital stock options, performance awards and restricted stock units.

The following tables provide the computation of diluted shares outstanding for the three and nine months ended March 31, 2019 and 2018:



	Three Months Ended March 31,		Nine Months Ended March 31,
(in thousands)	2019	2018	2019	2018
Weighted-average shares outstanding during period	82,479	81,793	82,305	81,445
Add: Unexercised capital stock options, unvested performance awards and unvested restricted stock units	860	1,316	961	1,225
Number of shares on which diluted earnings per share is calculated	83,339	83,109	83,266	82,670
Unexercised capital stock options, performance awards and restricted stock units not included in the computation because the option exercise price was greater than the average market price	515	5	423	416