Land and Subsurface Interests - Summary of Sales within the Tomoka Town Center (Detail)			3 Months Ended		12 Months Ended
	Mar. 30, 2016 USD ($) $ / a	Mar. 28, 2016 USD ($)	Mar. 31, 2016 USD ($) ft² a $ / a	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) a	Feb. 18, 2016 a
Real Estate Properties [Line Items]
Area of a real estate property			1,700,000		160	0.37
Sales Price	$ 2,000,000		$ 2,200,000
Avg. Sales Price per Acre | $ / a	455,000
Gain Recognized in 2015		$ 11,400,000	$ 134,000	$ 277,000
Tanger Outlet [Member]
Real Estate Properties [Line Items]
Date Closed			Nov. 12, 2015
Area of a real estate property | a			38.93
Sales Price			$ 9,700,000
Avg. Sales Price per Acre | $ / a			249,165
Gain Recognized in 2015			$ 2,791,549		$ 2,793,419
Deferred Revenue as of March 31, 2016			$ 3,223,855
Sam’s Club [Member]
Real Estate Properties [Line Items]
Date Closed			Dec. 23, 2015
Area of a real estate property | a			18.10
Sales Price			$ 4,500,000
Avg. Sales Price per Acre | $ / a			248,619
Gain Recognized in 2015			$ 1,462,727		1,278,747
Deferred Revenue as of March 31, 2016			$ 1,443,493
NADG - First Parcel [Member]
Real Estate Properties [Line Items]
Date Closed			Dec. 29, 2015
Area of a real estate property | a			37.26
Sales Price			$ 5,168,335
Avg. Sales Price per Acre | $ / a			138,710
Gain Recognized in 2015			$ 1,555,240		1,421,303
Deferred Revenue as of March 31, 2016			$ 1,791,790
NADG - Out Parcel [Member]
Real Estate Properties [Line Items]
Date Closed			Mar. 30, 2016
Area of a real estate property | a			4.40
Sales Price			$ 2,000,000
Avg. Sales Price per Acre | $ / a			454,545
Gain Recognized in 2015			$ 1,251,989
Deferred Revenue as of March 31, 2016			$ 693,371
Tomoka Town Center [Member]
Real Estate Properties [Line Items]
Area of a real estate property | a			98.69
Sales Price			$ 21,368,335
Avg. Sales Price per Acre | $ / a			216,520
Gain Recognized in 2015			$ 7,061,505		$ 5,493,469
Deferred Revenue as of March 31, 2016			$ 7,152,509