XML 36 R22.htm IDEA: XBRL DOCUMENT

Subsequent Events Subsequent Events (Notes)	12 Months Ended
Subsequent Events Subsequent Events (Notes)	Jul. 31, 2017
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events On September 6, 2017, the Company announced an increase in the annual dividend to shareholders of the Company's Class A Common Stock, from $0.82 to $0.83 per share. A quarterly dividend of $0.2075 will be paid on October 31, 2017, to shareholders of record at the close of business on October 10, 2017. This dividend represents an increase of 1.2% and is the 32nd consecutive annual increase in dividends.