Stockholders' Equity (Shares Available for Grant) (Details)	12 Months Ended
	Aug. 31, 2020 shares
Reconciliation of Shares Available to be Issued [Roll Forward]
Balance as of beginning of period (in shares)	12,040,581
SARS canceled (in shares)	601
Restricted stock units granted, net of forfeitures (in shares)	(1,431,674)
Balance as of end of period (in shares)	10,609,508