Stockholders' Equity (Tables)

3 Months Ended

Oct. 31, 2018

Equity [Abstract]

Schedule of Change in Retained Earnings

The components of the change in retained earnings are as follows:

Balance as of July 31, 2018	$	2,022,988
Cumulative effect of the change in accounting principle, net of tax		(5,450	)
Net income		13,953
Dividends declared but not paid		(20,595	)
Balance as of October 31, 2018	$	2,010,896