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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Property, Plant and Equipment [Line Items] |  |
Inventory write downs | $ 8,096,000 | $ 100,794,000
Asset impairment charges | 0 | 15,100,000
Impairments of operating lease assets | 0 | 15,370,000
Impairment of intangible assets | $ 0 | $ 5,300,000
Percent of revenue from goods and services transferred at point in time | 91.00% |
Percent of revenue from goods and services transferred over time | 9.00% |
Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life, property and equipment | 2 years |
Remaining lease term | 1 year |
Estimated useful life, intangible assets | 2 years |
Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life, property and equipment | 30 years |
Remaining lease term | 12 years |
Estimated useful life, intangible assets | 22 years |

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