Summary of Significant Accounting Policies (Other Narrative) (Details) - USD ($)
$ in Millions

3 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Accounting Policies [Abstract]

Sale of businesses

$ 0.0

$ 1.0

Revenue from Contract with Customer [Policy Text Block]

Revenue Recognition

Revenue is recognized as performance obligations are satisfied, either at a point in time or over time, driven by the nature of the obligation that is contracted to be provided to our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in the contract. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. Certain of our contracts have multiple performance obligations. For contracts with multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract.

The majority of our capital equipment revenue is recognized at a point in time, primarily based on the transfer of title, except in circumstances where we are also required to install the equipment, for which revenue is recognized upon customer acceptance of the installation. Performance obligations involving the provision of services and revenue from rental usage of our products are recognized over the time period specified in the contractual arrangement with the customer. Shipping and handling activities are considered to be fulfillment activities and are not considered to be a separate performance obligation.

Revenue is presented net of several types of variable consideration including rebates, discounts and product returns, which are estimated at the time of sale generally using the expected value method, although the most likely amount method is also used for certain types of variable consideration. These estimates take into consideration historical experience, current contractual and statutory requirements, specific known market events and trends, industry data, and forecasted customer buying and payment patterns.

Certain costs associated with obtaining a contract, which primarily comprise sales commissions earned by Company personnel, are capitalized until such time as the related performance obligations are completed and the related revenue is recognized.

Contract liabilities arise as a result of cash received from customers at inception of contracts or where the timing of billing for services precedes satisfaction of our performance obligations. Remaining performance obligations represent the portion of the contract price for which work has not been performed, primarily related to installation and service contracts.

Taxes assessed by a governmental authority that are directly imposed on a revenue producing transaction between us and our customers, including but not limited to sales taxes, use taxes and value added taxes, are excluded from revenue and cost.

Gain (Loss) on Disposition of Business

$ 1.0