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Capital Stock

12 Months Ended

Sep. 30, 2017

Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]

Stockholders' Equity Note Disclosure

Capital Stock

Common stock share activity is presented below.

Shares outstanding at September 30, 2014	159,760,671
Vesting of restricted stock units, net of shares withheld for taxes	541,839
Exercise of stock options	506,632
Exercise of employee stock purchase plan instruments	212,550
Stock repurchased under buyback program	(523,851	)
Shares outstanding at September 30, 2015	160,497,841
Vesting of restricted stock units, net of shares withheld for taxes	370,138
Settlement of performance-based restricted stock units, net of shares withheld for taxes	335,998
Exercise of stock options	270,599
Exercise of employee stock purchase plan instruments	218,475
Shares outstanding at September 30, 2016	161,693,051
Exercise of employee stock purchase plan instruments	150,174
Exercise of stock options	905,834
Vesting of restricted stock units, net of shares withheld for taxes	262,488
Settlement of performance-based restricted stock units, net of shares withheld for taxes	160,063
Stock repurchased under buyback program	(4,581,227	)
Shares outstanding at September 30, 2017	158,590,383

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- References

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- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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