SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Estimated Useful Lives of Property and Equipment (Details) |
12 Months Ended |
---|---|
Dec. 31, 2020 | |
Building [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 39 years |
Leasehold Improvements [Member] | |
Property, Plant and Equipment [Line Items] | |
Estimated Useful Life | Lesser of lease term or expected useful life |
Equipment and Furniture [Member] | Minimum [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 3 years |
Equipment and Furniture [Member] | Maximum [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 7 years |
Vehicles [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 5 years |
Computer Software [Member] | Minimum [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 2 years |
Computer Software [Member] | Maximum [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 7 years |
Finance Leases [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 3 years |