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Description Of Business And Summary Of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Description Of Business And Summary Of Significant Accounting Policies [Abstract]
Estimated Useful Lives Of Leasehold Improvements, Property and Equipment	Leasehold improvements and buildings3-20 yearsFurniture and fixtures4-7 yearsEquipment3-10 years

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