Shareholders' Equity and Redeemable Noncontrolling Interests (Details) - USD ($)
$ / shares in Units, shares in Thousands |
3 Months Ended |
9 Months Ended |
|
May 31, 2016 |
May 31, 2015 |
May 31, 2016 |
May 31, 2015 |
Aug. 31, 2013 |
| Share Repurchases [Line Items] |
|
|
|
|
|
| Share repurchases |
|
|
$ 732,000
|
$ 40,700,000
|
|
| Apollo Class A nonvoting common stock [Member] |
|
|
|
|
|
| Share Repurchases [Line Items] |
|
|
|
|
|
| Aggregate share repurchase program |
|
|
|
|
$ 250,000,000
|
| Share repurchase program, remaining authorized repurchased amount |
$ 52,200,000
|
|
$ 52,200,000
|
|
|
| Share repurchases (in shares) |
|
|
0
|
0
|
|
| Share repurchases |
|
|
$ 0
|
$ 0
|
|
| Share reissuances (in shares) |
38
|
70
|
359
|
352
|
|
| Apollo Class A nonvoting common stock [Member] | Share Repurchases [Member] |
|
|
|
|
|
| Share Repurchases [Line Items] |
|
|
|
|
|
| Share repurchases (in shares) |
0
|
0
|
0
|
1,440
|
|
| Share repurchases, weighted average price per share |
$ 0.00
|
$ 0.00
|
$ 0.00
|
$ 26.45
|
|
| Share repurchases |
$ 0
|
$ 0
|
$ 0
|
$ 38,092,000
|
|
| Apollo Class A nonvoting common stock [Member] | Repurchases Related To Restricted Stock Units [Member] |
|
|
|
|
|
| Share Repurchases [Line Items] |
|
|
|
|
|
| Share repurchases (in shares) |
13
|
22
|
91
|
109
|
|
| Share repurchases |
$ 106,000
|
$ 382,000
|
$ 732,000
|
$ 2,608,000
|
|