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Shareholders' Equity | 12 Months Ended
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Sep. 30, 2017
Stockholders' Equity Note [Abstract] |
Shareholders' Equity | Shareholders' Equity On June 6, 2016, the Board of Directors authorized a multi-year stock repurchase program under which the Company is authorized to repurchase up to $150.0 million of its common stock beginning in fiscal 2017. During fiscal 2017, the Company repurchased 655,470 shares under this program for $34.1 million, at an average price of $52.08 per share. On August 20, 2015, the Board of Directors authorized a stock repurchase program under which the Company was authorized to repurchase up to $30.0 million of its common stock during fiscal 2016. During fiscal 2016, the Company repurchased 760,903 shares for $30.0 million, at an average price of $39.43 per share. All shares repurchased under the aforementioned programs were recorded as treasury stock. Pursuant to the Company’s Rights Agreement, each preferred share purchase right (a "Right") entitles the registered holder to purchase from the Company one one-hundredth of a share of the Company’s Series B Junior Participating Preferred Stock, $0.01 par value per share ("Preferred Share"), at a price of $125.00 per one one-hundredth of a Preferred Share, subject to adjustment. The Rights are exercisable only if a person or group acquires beneficial ownership of more than 20.0% of the Company’s outstanding common stock or commences, or announces an intention to make, a tender offer or exchange offer that would result in such person or group acquiring the beneficial ownership of more than 20.0% of the Company’s common stock. The Rights expire on August 28, 2018, subject to extension.

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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 + Details
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