Subsequent Events	3 Months Ended
Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events Acquisition On January 15, 2021, we acquired Arena Solutions, creators of a Software as a Service (SaaS) product lifecycle management (PLM) solution, for approximately $715 million, net of cash acquired. The acquisition, together with Onshape, our SaaS CAD offering, is expected to accelerate our ability to attract new customers with a suite of SaaS-based product offerings and position the company to capitalize on the SaaS market opportunity. Borrowings under Credit Facility In January 2021, we borrowed $600 million under our existing credit facility to acquire Arena, bringing our total outstanding indebtedness to approximately $1.6 billion.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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