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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Summary of Significant Accounting Policies [Abstract] |
Property Plant And Equipment Schedule Of Significant Acquisitions And Disposals |
​ | ​ | ​ | ​
Building and building improvements | ​ | ​ | 10 - 35 years
Leasehold Improvements (1) | ​ | ​ | Lease term
Equipment and fixtures | ​ | ​ | 3 - 15 years
Software | ​ | ​ | 5 years
Vehicles | ​ | ​ | 5 years
​ (1) The depreciation life for leasehold improvements is the lesser of the estimated useful life of the addition or the term of the related lease.

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- Definition Tabular disclosure of estimated useful lives of the assets acquired during the reporting period. + References No definition available. + Details
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