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Summary Of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule Of Property, Plant, And Equipment Useful Life | Property, plant, and equipment are stated at cost, net of accumulated depreciation. Depreciation is computed on a straight-line basis over the estimated useful lives of the assets, down to the estimated salvage value, if any. The salvage value of operating lease assets is estimated based on a number of factors including, but not limited to, the lease term, technological obsolescence, and the expected future demand for refurbished systems. Depreciation is recognized over the following estimated useful lives:
| Useful Lives
Building | Up to 30 years
Building improvements | Up to 15 years
Leasehold improvements | Lesser of useful life or term of lease
Equipment and furniture | 5 years
Operating lease assets | 1 to 7 years
Computer and office equipment | 3 to 5 years
Enterprise-wide software | 5 to 8 years
Purchased software | Lesser of 3 years or life of license
Amortized Cost Basis By Year of Origination and Credit Quality Indicator | The following table summarizes the amortized cost basis by year of origination and by credit quality for the net investment in sales-type leases as of December 31, 2024 (in millions):
| 2024 |  | 2023 |  | 2022 |  | 2021 |  | 2020 |  |  | Prior |  | Net Investment
Credit Rating: |  |  |  |  |  |  |  |  |  |  |  |  |  |
High | $ | 73.2 |  |  | $ | 30.0 |  |  | $ | 41.7 |  |  | $ | 31.4 |  |  | $ | 7.4 |  |  |  | $ | 0.7 |  |  | $ | 184.4 |
Moderate | 82.8 |  |  | 23.7 |  |  | 43.1 |  |  | 27.5 |  |  | 11.2 |  |  |  | 1.1 |  |  | 189.4 |
Low | 2.1 |  |  | 1.0 |  |  | 0.9 |  |  | 1.5 |  |  | 0.2 |  |  |  | — |  |  | 5.7 |
Total | $ | 158.1 |  |  | $ | 54.7 |  |  | $ | 85.7 |  |  | $ | 60.4 |  |  | $ | 18.8 |  |  |  | $ | 1.8 |  |  | $ | 379.5 |

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- Definition Tabular disclosure of credit quality indicator for net investment in sales-type lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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