Annual report pursuant to Section 13 and 15(d)

Equity and Long-Term Incentive Compensation Plans - Employee Stock Purchase Plan (Details)

v3.10.0.1
Equity and Long-Term Incentive Compensation Plans - Employee Stock Purchase Plan (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
ESPP, maximum employee subscription rate 15.00%    
ESPP, offering period 6 months    
ESPP, discount from market price, lesser of commencement of offering period or purchase date 85.00%    
Employee Stock Purchase Plan Additional Information      
Total cash received from employees for the issuance of shares under the ESPP $ 61,452 $ 45,358 $ 38,295
Number of shares purchased by employees through the ESPP (in shares) 733,000 705,000 735,000
Tax benefits realized by the Company in connection with the disqualifying dispositions of shares purchased under the ESPP $ 1,664 $ 1,999 $ 2,194
Weighted-average fair value per share based on Black-Scholes model (in dollars per share) $ 21.95 $ 15.16 $ 12.48
ESPP maximum annual share replenishment (in shares) 2,000,000.0    
Number of ESPP shares available for future issuance (in shares) 2,000,000    
Employee Stock Purchase Plan      
ESPP, Fair Value Assumptions and Methodology      
Expected stock price volatility 28.70% 23.40% 25.40%
Risk-free interest rate 1.10% 0.50% 0.20%
Dividend yield 2.50% 2.80% 3.30%
Expected life (in years) 6 months 6 months 6 months