Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Earnings Per Share [Abstract]
Net income (loss) attributable to Apollo (basic and diluted)	$ 20,744	$ 48,064	$ (100,417)	$ 48,239
Basic weighted average shares outstanding (in shares)	108,658	107,678	108,567	108,140
Anti-dilutive securities [Line Items]
Diluted weighted average shares outstanding (in shares)	109,444	108,623	108,567	109,124
Basic income (loss) per share attributable to Apollo (in dollars per share)	$ 0.19	$ 0.45	$ (0.92)	$ 0.45
Diluted income (loss) per share attributable to Apollo (in dollars per share)	$ 0.19	$ 0.44	$ (0.92)	$ 0.44
Restricted stock units and performance share awards [Member]
Anti-dilutive securities [Line Items]
Dilutive effect of share-based awards (in shares)	786	828	0	818
Anti-dilutive securities excluded from diluted loss per share computation (in shares)	2,984	33	4,071	21
Stock options [Member]
Anti-dilutive securities [Line Items]
Dilutive effect of share-based awards (in shares)	0	117	0	166
Anti-dilutive securities excluded from diluted loss per share computation (in shares)	3,514	2,513	3,595	2,329