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Stockholders' Equity (Notes)	3 Months Ended
	Dec. 31, 2019
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	Stockholders' Equity The Company has an effective shelf registration statement filed with the Securities and Exchange Commission (SEC) in September 2018 registering $500 million of equity securities. In September 2019, the Company issued 6.0 million shares of its common stock for $17.50 per share in a public underwritten offering. Following the offering, $394.3 million remains available for issuance under the shelf registration statement.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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