Business Acquisitions - Other (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Jul. 12, 2019 |
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Acquisitions | ||||
| Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 0.1612 | |||
| Business acquisition, development, and integration costs | $ 16,600,000 | $ 3,500,000 | $ 1,100,000 | |
| Business Combination, Consideration Transferred | $ 2,000,000,000 | |||
| Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | $ 11.80 | |||
| Line of Credit [Member] | ||||
| Acquisitions | ||||
| Maximum borrowing capacity available under the facility | 900,000,000 | $ 900,000,000.0 | $ 700,000,000.0 | |
| $180 term loan | ||||
| Acquisitions | ||||
| Debt issued | $ 180,000,000.0 | |||
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- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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