XML 28 R17.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Capital Stock and Share Repurchase | 3 Months Ended
--- | ---
Nov. 30, 2017
Earnings Per Share [Abstract] |
Capital Stock and Share Repurchase | Note 11. Capital Stock and Share Repurchases The Company's Board of Directors authorized the repurchase of shares of the Company's common stock under publicy announced share repurchase programs. Since the inception of the initial share repurchase program in fiscal 2012, the Company has repurchased 20,439,434 shares of common stock for $617.7 million. As of November 30, 2017, the maximum number of shares that may yet be purchased under the programs is 7,560,566 shares. There were no share repurchases in the three months ended November 30, 2017. The reconciliation between basic and diluted earnings per share is as follows (in thousands, except per share amounts):
| Three Months Ended November 30, |
| 2017 |  | 2016 |
Numerator: |  |  |  |
Net earnings | $ | 5,226 |  |  | $ | 4,965 |  |
Denominator: |  |  |  |
Weighted average common shares outstanding - basic | 59,871 |  |  | 58,972 |  |
Net effect of dilutive securities - stock based compensation plans | 738 |  |  | 644 |  |
Weighted average common shares outstanding - diluted | 60,609 |  |  | 59,616 |  |
Basic earnings per share | $ | 0.09 |  |  | $ | 0.08 |  |
Diluted earnings per share | 0.09 |  |  | 0.08 |  |
Anti-dilutive securities from stock based compensation plans (excluded from earnings per share calculation) | 1,829 |  |  | 1,963 |  |

X
- Definition Capital Stock and Share Repurchase [Text Block] + References No definition available. + Details
Name: | atu_CapitalStockandShareRepurchaseTextBlock
Namespace Prefix: | atu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration