Summary of Significant Accounting Policies (Details) - Impairment of Long-Lived Assets - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Impairment	$ 6,500,000	$ 500,000	$ 14,100,000	$ 1,400,000
Mabley Place Garage [Member]
Impairment			$ 3,000,000
Valuation Method			Income Capitalization
MVP Houston Saks [Member]
Impairment			$ 2,500,000
Valuation Method			Income Capitalization
MVP Milwaukee Wells [Member]
Impairment			$ 620,000
Valuation Method			Sales Comparison
MVP Wildwood NJ Lot [Member]
Impairment			$ 535,000
Valuation Method			Sales Comparison
MVP Indianapolis Meridian [Member]
Impairment			$ 50,000
Valuation Method			Income Capitalization
MVP Clarksburg Lot [Member]
Impairment			$ 90,000
Valuation Method			Income Capitalization
Minneapolis City Parking [Member]
Impairment			$ 320,000	$ 500,000
Valuation Method			Sales Comparison	Income Capitalization
33740 Crown Colony [Member]
Impairment			$ 95,000
Valuation Method			Income Capitalization
MVP St Louis Washington [Member]
Impairment			$ 1,320,000	$ 50,000
Valuation Method			Income Capitalization	Income Capitalization
MVP Cincinnati Race Street [Member]
Impairment			$ 500,000
Valuation Method			Income Capitalization
MVP Louisville Broadway [Member]
Impairment			$ 100,000
Valuation Method			Income Capitalization
Cleveland Lincoln Garage [Member]
Impairment			$ 2,725,000
Valuation Method			Income Capitalization
MVP Preferred Parking [Member]
Impairment			$ 740,000
Valuation Method			Sales Comparison
MVP New Orleans Rampart [Member]
Impairment			$ 270,000
Valuation Method			Income Capitalization
MVP Hawaii Marks Garage [Member]
Impairment			$ 1,250,000
Valuation Method			Income Capitalization
Total [Member]
Impairment			$ 14,115,000	$ 1,452,000
MVP Memphis Court [Member]
Impairment				$ 558,000
Valuation Method				Sales Comparison
MVP San Jose 88 Garage [Member]
Impairment				$ 344,000
Valuation Method				Income Capitalization