Summary of Significant Accounting Policies - Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Buildings.
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	15 years	15 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Minimum \| Vehicles
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Minimum \| Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Minimum \| Office equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	5 years	5 years
Maximum \| Vehicles
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	10 years	10 years
Maximum \| Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	7 years	7 years
Maximum \| Office equipment
Property, Plant and Equipment [Line Items]
Property and Equipment Useful Lives (in years)	7 years	7 years

Andover National Corp 10-K