Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.8.0.1
Subsequent Events (Details) - $ / shares
3 Months Ended 6 Months Ended
Jan. 30, 2018
Dec. 13, 2017
Sep. 27, 2017
May 25, 2017
Feb. 24, 2017
Dec. 01, 2016
Oct. 07, 2016
May 27, 2016
Feb. 29, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Subsequent Event [Line Items]                          
Dividends paid (usd per share)   $ 0.08 $ 0.08 $ 0.08 $ 0.08 $ 0.07 $ 0.07 $ 0.07 $ 0.07 $ 0.08 $ 0.07 $ 0.16 $ 0.14
Subsequent Event                          
Subsequent Event [Line Items]                          
Dividend declared (usd per share) $ 0.08