Commitments and Contingencies (Details Textual) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Long Term Purchase Commitment [Line Items]
Bearing environmental liabilities	$ 17.5
Amount receivable to indemnification	7.0
Maximum [Member] | AIMCO Operating Partnership [Member]
Long Term Purchase Commitment [Line Items]
Bearing environmental liabilities	$ 17.5