Quarterly report pursuant to Section 13 or 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, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award        
ESPP maximum employee subscription rate 15.00%   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 $ 20,556 $ 20,579 $ 20,556 $ 20,579
Number of shares purchased by employees through the ESPP (in shares) 270 264 270 264
Tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP $ 92 $ 47 $ 603 $ 894
Weighted-average fair value per share based on Black-Scholes model (in dollars per share) $ 22.73 $ 19.04 $ 22.73 $ 19.04
ESPP maximum annual share replenishment (in shares) 2,000   2,000  
Number of ESPP shares available for future issuance (in shares) 2,400   2,400  
Employee Stock Purchase Plan        
ESPP, Fair Value Assumptions and Methodology        
Expected stock price volatility 30.00% 25.90% 30.00% 25.90%
Risk-free interest rate 1.90% 0.90% 1.90% 0.90%
Dividend yield 2.90% 2.60% 2.90% 2.60%
Expected life (in years) 6 months 6 months 6 months 6 months