Joint Ventures - Consolidated Joint Ventures (Details)	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2020 item	Mar. 31, 2021 item room	Dec. 31, 2020 item	Dec. 31, 2020	Mar. 31, 2020 item
Lodge 30A JV
Variable interest entity
Variable interest entity, ownership percentage		52.80%		52.80%
Lodge 30A JV | Hotel
Variable interest entity
Number of units to be developed | room		85
Pier Park Resort Hotel JV
Variable interest entity
Variable interest entity, ownership percentage		70.00%		70.00%
Pier Park Resort Hotel JV | Hotel
Variable interest entity
Number of units to be developed, under development, or developed and constructed | room		255
Pier Park Crossings Phase II JV
Variable interest entity
Variable interest entity, ownership percentage		75.00%		75.00%
Pier Park Crossings Phase II JV | Apartment
Variable interest entity
Number of units completed in period	120
Watersound Closings JV
Variable interest entity
Variable interest entity, ownership percentage		58.00%		58.00%
Watercrest JV
Variable interest entity
Variable interest entity, ownership percentage		87.00%		87.00%
Watercrest JV | Senior living community
Variable interest entity
Number of units completed in period			107
Watersound Origins Crossings JV
Variable interest entity
Variable interest entity, ownership percentage		75.00%		75.00%
Watersound Origins Crossings JV | Apartment
Variable interest entity
Number of units remaining to be constructed		163
Number of units to be developed, under development, or developed and constructed		217
Pier Park Crossings JV
Variable interest entity
Variable interest entity, ownership percentage		75.00%		75.00%
Pier Park Crossings JV | Apartment
Variable interest entity
Number of completed units					240
Pier Park North JV
Variable interest entity
Variable interest entity, ownership percentage		60.00%		60.00%