COMMITMENTS AND CONTINGENCIES - Contractual Commitments - Land Pipeline (Details) $ in Thousands	May 01, 2018 USD ($) a entity $ / a	Apr. 16, 2018 USD ($) a
Contracts
Number of purchase and sale agreements | entity	17
Number of buyers | entity	15
No. of Acres | a	6,007
Area of land sales as a percentage of land holdings	74.00%
Contract Amount | $	$ 137,693
Price per Acre | $ / a	23,000
Buyer's option
Contracts
No. of Acres | a	71
Contract Amount | $	$ 574
Base contract
Contracts
No. of Acres | a	129
Contract Amount | $	$ 2,750
Commercial/Retail | O'Connor - East Of I-95
Contracts
No. of Acres | a	123
Contract Amount | $	$ 29,250
Price per Acre | $ / a	238,000
Commercial/Retail | Buc'ees - East of I-95 | Minimum
Contracts
Cost of requisite mitigation credits as a percentage of land sale contract amount	5.00%
Commercial/Retail | Buc'ees - East of I-95 | Maximum
Contracts
Cost of requisite mitigation credits as a percentage of land sale contract amount	10.00%
Commercial/Retail | Property East of I-95, one
Contracts
No. of Acres | a	20
Contract Amount | $	$ 4,250
Price per Acre | $ / a	213,000
Commercial/Retail | Property East of I-95, one | Minimum
Contracts
Cost of requisite mitigation credits as a percentage of land sale contract amount	5.00%
Commercial/Retail | Property East of I-95, one | Maximum
Contracts
Cost of requisite mitigation credits as a percentage of land sale contract amount	10.00%
Commercial/Retail | Property East of I-95, two
Contracts
No. of Acres | a	8
Contract Amount | $	$ 782
Price per Acre | $ / a	98,000
Commercial/Retail | Property East of I-95, three
Contracts
No. of Acres | a	6
Contract Amount | $	$ 625
Price per Acre | $ / a	104,000
Commercial/Retail | Property west of Interstate 95
Contracts
No. of Acres | a	19
Contract Amount | $	$ 285
Price per Acre | $ / a	15,000
Residential (AR) | Minto Communities - West of I-95
Contracts
No. of Acres | a	1,614
Contract Amount | $	$ 26,500
Price per Acre | $ / a	16,000
Residential (SF) | ICI Homes - West of I-95
Contracts
No. of Acres | a	1,016
Contract Amount | $	$ 21,000
Price per Acre | $ / a	21,000
Residential (SF) | ICI Homes - West of I-95, property two
Contracts
No. of Acres | a	146
Contract Amount | $	$ 1,400
Price per Acre | $ / a	10,000
Residential (SF) | Property west of Interstate 95
Contracts
No. of Acres | a	200
Contract Amount | $	$ 3,324
Price per Acre | $ / a	17,000
Real Estate Operations | BlackRock - West of I-95
Contracts
No. of Acres | a	2,492	2,500
Contract Amount | $	$ 15,300	$ 15,300
Price per Acre | $ / a	6,000
Interest acquired in joint venture (as a percent)	70.00%	70.00%
Ownership interest retained (as a percent)	30.00%
Real Estate Operations | Property East of I-95, one
Contracts
No. of Acres | a	9
Contract Amount | $	$ 3,300
Price per Acre | $ / a	367,000
Real Estate Operations | Property west of Interstate 95
Contracts
No. of Acres | a	164
Contract Amount | $	$ 1,900
Price per Acre | $ / a	12,000
Mixed-Use Retail | North American - East of I-95
Contracts
No. of Acres | a	35
Contract Amount | $	$ 14,362
Price per Acre | $ / a	409,000
Residential (Multi-Family) | Property east of Interstate 95
Contracts
No. of Acres | a	45
Contract Amount | $	$ 5,200
Price per Acre | $ / a	116,000
Residential (Multi-Family) | Buyer's option | Property east of Interstate 95
Contracts
No. of Acres | a	19
Contract Amount | $	$ 2,000
Residential (Multi-Family) | Base contract | Property east of Interstate 95
Contracts
No. of Acres | a	26
Contract Amount | $	$ 3,200
Distribution/Warehouse | Property east of Interstate 95
Contracts
No. of Acres | a	71
Contract Amount | $	$ 5,000
Price per Acre | $ / a	70,000
Commercial/Distribution | Property east of Interstate 95
Contracts
No. of Acres | a	26
Contract Amount | $	$ 3,215
Price per Acre | $ / a	124,000
Auto Dealership | Property west of Interstate 95
Contracts
No. of Acres | a	13
Contract Amount | $	$ 2,000
Price per Acre | $ / a	154,000