Accelerated Share Repurchase	12 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Accelerated Share Repurchase	Accelerated Share RepurchaseWe have authorization to make repurchases of shares of our common stock from time to time in the open market or in negotiated transactions. As part of the broader share repurchase program, we entered into an accelerated share repurchase agreement (“ASR Agreement”) with a financial institution on June 17, 2021 to repurchase $200.0 million of our common stock. The ASR Agreement was accounted for as two separate transactions (1) a repurchase of common stock and (2) an equity-linked contract on our own stock. Pursuant to the ASR Agreement, we paid $200.0 million to the financial institution and received an initial delivery of 319,400 shares of common stock, which approximated 80% of the total number of expected shares to be repurchased under the ASR Agreement. The equity-linked contract for the remaining $40.0 million, representing remaining shares to be delivered under the ASR Agreement, was recorded as a reduction to stockholders’ equity as of June 30, 2021 and was settled in August 2021 with us receiving 70,127 additional shares. In total, 389,527 shares were repurchased under the ASR Agreement. We were not required to make any additional cash payments or delivery of common stock to the financial institution upon settlement of the agreement.