REAL ESTATE PROPERTIES - Development and Value-Add Disclosures (Details)		12 Months Ended
		Dec. 31, 2022 USD ($) ft²	Dec. 31, 2021 USD ($) ft²	Dec. 31, 2020 USD ($)
Real Estate [Line Items]
Interest costs capitalized on development properties		$ 12,393,000	$ 9,028,000	$ 9,651,000
Internal Development Costs Capitalized During Period		9,985,000	7,713,000	6,689,000
Costs subsequent to transfer, development transfers during the period		10,989,000
Development costs incurred, for the period		$ 494,073,000	$ 418,855,000	$ 195,446,000
Speed Distribution Center
Real Estate [Line Items]
Area of real estate property | ft²			519,000
Lease Up [Member]
Real Estate [Line Items]
Area of real estate property | ft²		1,415,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		133,260,000
Development and value-add properties		158,945,000
Estimated Total Cumulative Development Costs	[2]	$ 173,600,000
Lease Up [Member] | Cypress Preserve 1 & 2
Real Estate [Line Items]
Area of real estate property | ft²	[3]	516,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	54,081,000
Development and value-add properties	[3]	54,081,000
Estimated Total Cumulative Development Costs	[2],[3]	$ 57,800,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	03/23
Lease Up [Member] | Grand West Crossing 1
Real Estate [Line Items]
Area of real estate property | ft²		121,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		4,168,000
Development and value-add properties		13,037,000
Estimated Total Cumulative Development Costs	[2]	$ 15,700,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		04/23
Lease Up [Member] | Zephyr Distribution Center
Real Estate [Line Items]
Area of real estate property | ft²	[3]	82,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	29,028,000
Development and value-add properties	[3]	29,028,000
Estimated Total Cumulative Development Costs	[2],[3]	$ 29,800,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	04/23
Lease Up [Member] | Access Point 3
Real Estate [Line Items]
Area of real estate property | ft²	[3]	299,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	22,632,000
Development and value-add properties	[3]	22,632,000
Estimated Total Cumulative Development Costs	[2],[3]	$ 25,400,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	07/23
Lease Up [Member] | McKinney 3 & 4
Real Estate [Line Items]
Area of real estate property | ft²		212,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		13,714,000
Development and value-add properties		24,152,000
Estimated Total Cumulative Development Costs	[2]	$ 27,000,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		07/23
Lease Up [Member] | Grand Oaks 75 4
Real Estate [Line Items]
Area of real estate property | ft²		185,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		9,637,000
Development and value-add properties		16,015,000
Estimated Total Cumulative Development Costs	[2]	$ 17,900,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		09/23
Under construction [Member]
Real Estate [Line Items]
Area of real estate property | ft²		2,566,000
Costs Transferred In Current Year	[1]	$ 52,687,000
Development costs incurred, for the period		102,297,000
Development and value-add properties		165,886,000
Estimated Total Cumulative Development Costs	[2]	$ 320,500,000
Under construction [Member] | Suncoast 11
Real Estate [Line Items]
Area of real estate property | ft²		79,000
Costs Transferred In Current Year	[1]	$ 1,524,000
Development costs incurred, for the period		7,651,000
Development and value-add properties		9,175,000
Estimated Total Cumulative Development Costs	[2]	$ 9,900,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		04/23
Under construction [Member] | Arlington Tech 3
Real Estate [Line Items]
Area of real estate property | ft²		77,000
Costs Transferred In Current Year	[1]	$ 1,980,000
Development costs incurred, for the period		6,420,000
Development and value-add properties		8,400,000
Estimated Total Cumulative Development Costs	[2]	$ 10,300,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		02/24
Under construction [Member] | Gateway 2
Real Estate [Line Items]
Area of real estate property | ft²		133,000
Costs Transferred In Current Year	[1]	$ 8,049,000
Development costs incurred, for the period		10,139,000
Development and value-add properties		18,188,000
Estimated Total Cumulative Development Costs	[2]	$ 23,700,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		02/24
Under construction [Member] | Hillside 1
Real Estate [Line Items]
Area of real estate property | ft²		122,000
Costs Transferred In Current Year	[1]	$ 632,000
Development costs incurred, for the period		8,846,000
Development and value-add properties		9,478,000
Estimated Total Cumulative Development Costs	[2]	$ 11,600,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		02/24
Under construction [Member] | I-20 West Business Center
Real Estate [Line Items]
Area of real estate property | ft²		155,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		10,175,000
Development and value-add properties		13,139,000
Estimated Total Cumulative Development Costs	[2]	$ 15,500,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		02/24
Under construction [Member] | Lakeport 4 & 5
Real Estate [Line Items]
Area of real estate property | ft²		177,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		10,767,000
Development and value-add properties		18,705,000
Estimated Total Cumulative Development Costs	[2]	$ 24,000,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		02/24
Under construction [Member] | Horizon West 1
Real Estate [Line Items]
Area of real estate property | ft²		97,000
Costs Transferred In Current Year	[1]	$ 3,730,000
Development costs incurred, for the period		5,839,000
Development and value-add properties		9,569,000
Estimated Total Cumulative Development Costs	[2]	$ 13,200,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		03/24
Under construction [Member] | Steel Creek 11 & 12
Real Estate [Line Items]
Area of real estate property | ft²		241,000
Costs Transferred In Current Year	[1]	$ 2,857,000
Development costs incurred, for the period		13,923,000
Development and value-add properties		16,780,000
Estimated Total Cumulative Development Costs	[2]	$ 25,900,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		04/24
Under construction [Member] | Springwood 1 & 2
Real Estate [Line Items]
Area of real estate property | ft²		292,000
Costs Transferred In Current Year	[1]	$ 6,741,000
Development costs incurred, for the period		16,232,000
Development and value-add properties		22,973,000
Estimated Total Cumulative Development Costs	[2]	$ 33,300,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		05/24
Under construction [Member] | Stonefield 35 1-3
Real Estate [Line Items]
Area of real estate property | ft²		274,000
Costs Transferred In Current Year	[1]	$ 10,279,000
Development costs incurred, for the period		6,040,000
Development and value-add properties		16,319,000
Estimated Total Cumulative Development Costs	[2]	$ 35,300,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		06/24
Under construction [Member] | SunCoast 10
Real Estate [Line Items]
Area of real estate property | ft²		100,000
Costs Transferred In Current Year	[1]	$ 1,624,000
Development costs incurred, for the period		1,344,000
Development and value-add properties		2,968,000
Estimated Total Cumulative Development Costs	[2]	$ 13,600,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		06/24
Under construction [Member] | Basswood 3-5
Real Estate [Line Items]
Area of real estate property | ft²		351,000
Costs Transferred In Current Year	[1]	$ 7,476,000
Development costs incurred, for the period		886,000
Development and value-add properties		8,362,000
Estimated Total Cumulative Development Costs	[2]	$ 45,000,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		08/24
Under construction [Member] | McKinney 1 & 2
Real Estate [Line Items]
Area of real estate property | ft²		172,000
Costs Transferred In Current Year	[1]	$ 4,261,000
Development costs incurred, for the period		2,240,000
Development and value-add properties		6,501,000
Estimated Total Cumulative Development Costs	[2]	$ 27,300,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		08/24
Under construction [Member] | Cass White 1 & 2
Real Estate [Line Items]
Area of real estate property | ft²		296,000
Costs Transferred In Current Year	[1]	$ 3,534,000
Development costs incurred, for the period		1,795,000
Development and value-add properties		5,329,000
Estimated Total Cumulative Development Costs	[2]	$ 31,900,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		10/24
Prospective Development [Member]
Real Estate [Line Items]
Area of real estate property | ft²		9,730,000
Costs Transferred In Current Year	[1]	$ (63,369,000)
Development costs incurred, for the period		148,984,000
Development and value-add properties		$ 213,618,000
Prospective Development [Member] | Phoenix [Member]
Real Estate [Line Items]
Area of real estate property | ft²		655,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		15,395,000
Development and value-add properties		$ 15,395,000
Prospective Development [Member] | Sacramento
Real Estate [Line Items]
Area of real estate property | ft²		82,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		3,130,000
Development and value-add properties		$ 3,130,000
Prospective Development [Member] | San Francisco
Real Estate [Line Items]
Area of real estate property | ft²		65,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		3,561,000
Development and value-add properties		$ 3,561,000
Prospective Development [Member] | Fort Myers [Member]
Real Estate [Line Items]
Area of real estate property | ft²		364,000
Costs Transferred In Current Year	[1]	$ (3,148,000)
Development costs incurred, for the period		2,693,000
Development and value-add properties		$ 7,843,000
Prospective Development [Member] | Miami [Member]
Real Estate [Line Items]
Area of real estate property | ft²		510,000
Costs Transferred In Current Year	[1]	$ (8,049,000)
Development costs incurred, for the period		18,035,000
Development and value-add properties		$ 24,317,000
Prospective Development [Member] | Orlando [Member]
Real Estate [Line Items]
Area of real estate property | ft²		1,053,000
Costs Transferred In Current Year	[1]	$ (9,906,000)
Development costs incurred, for the period		8,338,000
Development and value-add properties		$ 24,670,000
Prospective Development [Member] | Tampa [Member]
Real Estate [Line Items]
Area of real estate property | ft²		32,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		0
Development and value-add properties		$ 825,000
Prospective Development [Member] | Atlanta [Member]
Real Estate [Line Items]
Area of real estate property | ft²		1,490,000
Costs Transferred In Current Year	[1]	$ (3,534,000)
Development costs incurred, for the period		13,189,000
Development and value-add properties		$ 14,713,000
Prospective Development [Member] | Jackson [Member]
Real Estate [Line Items]
Area of real estate property | ft²		28,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		0
Development and value-add properties		$ 706,000
Prospective Development [Member] | Charlotte [Member]
Real Estate [Line Items]
Area of real estate property | ft²		1,146,000
Costs Transferred In Current Year	[1]	$ (2,857,000)
Development costs incurred, for the period		1,475,000
Development and value-add properties		$ 13,722,000
Prospective Development [Member] | Greenville [Member]
Real Estate [Line Items]
Area of real estate property | ft²		476,000
Costs Transferred In Current Year	[1]	$ (632,000)
Development costs incurred, for the period		5,353,000
Development and value-add properties		$ 6,457,000
Prospective Development [Member] | Austin [Member]
Real Estate [Line Items]
Area of real estate property | ft²		1,557,000
Costs Transferred In Current Year	[1]	$ (10,279,000)
Development costs incurred, for the period		50,699,000
Development and value-add properties		$ 46,851,000
Prospective Development [Member] | Dallas [Member]
Real Estate [Line Items]
Area of real estate property | ft²		0
Costs Transferred In Current Year	[1]	$ (4,261,000)
Development costs incurred, for the period		457,000
Development and value-add properties		$ 4,594,000
Prospective Development [Member] | Houston [Member]
Real Estate [Line Items]
Area of real estate property | ft²		1,536,000
Costs Transferred In Current Year	[1]	$ (11,247,000)
Development costs incurred, for the period		17,110,000
Development and value-add properties		$ 30,696,000
Prospective Development [Member] | San Antonio [Member]
Real Estate [Line Items]
Area of real estate property | ft²		423,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		8,173,000
Development and value-add properties		$ 8,891,000
Prospective Development [Member] | Fort Worth
Real Estate [Line Items]
Area of real estate property | ft²		313,000
Costs Transferred In Current Year	[1]	$ (9,456,000)
Development costs incurred, for the period		1,376,000
Development and value-add properties		$ 7,247,000
Lease Up, Construction, And Prospective Development [Member]
Real Estate [Line Items]
Area of real estate property | ft²		13,711,000
Costs Transferred In Current Year	[1]	$ (10,682,000)
Development costs incurred, for the period		384,541,000
Development and value-add properties		538,449,000
Development obligations		134,800,000
Tenant improvement obligations		$ 15,000,000
Development completed and transferred to Real estate properties [Member]
Real Estate [Line Items]
Area of real estate property | ft²		3,638,000
Costs Transferred In Current Year	[1]	$ 10,682,000
Development costs incurred, for the period		110,623,000
Development and value-add properties	[4]	$ 461,329,000
Development completed and transferred to Real estate properties [Member] | SunCoast Commerce Center 12
Real Estate [Line Items]
Area of real estate property | ft²		79,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		3,928,000
Development and value-add properties	[4]	$ 8,106,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		12/22
Development completed and transferred to Real estate properties [Member] | Tri-County Crossing 5
Real Estate [Line Items]
Area of real estate property | ft²		106,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		5,544,000
Development and value-add properties	[4]	$ 11,144,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		12/22
Development completed and transferred to Real estate properties [Member] | Access Point 1
Real Estate [Line Items]
Area of real estate property | ft²	[3]	156,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	7,000
Development and value-add properties	[3],[4]	$ 12,529,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	01/22
Development completed and transferred to Real estate properties [Member] | Speed Distribution Center
Real Estate [Line Items]
Area of real estate property | ft²		519,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		2,884,000
Development and value-add properties	[4]	$ 70,702,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		03/22
Development completed and transferred to Real estate properties [Member] | Access Point 2
Real Estate [Line Items]
Area of real estate property | ft²	[3]	159,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	601,000
Development and value-add properties	[3],[4]	$ 12,232,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	05/22
Development completed and transferred to Real estate properties [Member] | Grand Oaks 75 Business Center 3
Real Estate [Line Items]
Area of real estate property | ft²		136,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		1,205,000
Development and value-add properties	[4]	$ 11,397,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		06/22
Development completed and transferred to Real estate properties [Member] | Siempre Viva 3-6
Real Estate [Line Items]
Area of real estate property | ft²	[3]	547,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	595,000
Development and value-add properties	[3],[4]	$ 133,283,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	06/22
Development completed and transferred to Real estate properties [Member] | Steele Creek 8
Real Estate [Line Items]
Area of real estate property | ft²		72,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		5,142,000
Development and value-add properties	[4]	$ 7,870,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		07/22
Development completed and transferred to Real estate properties [Member] | CreekView 9 & 10
Real Estate [Line Items]
Area of real estate property | ft²		145,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		4,210,000
Development and value-add properties	[4]	$ 15,546,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		08/22
Development completed and transferred to Real estate properties [Member] | Gateway Commerce Park 3
Real Estate [Line Items]
Area of real estate property | ft²		133,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		4,903,000
Development and value-add properties	[4]	$ 18,069,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		08/22
Development completed and transferred to Real estate properties [Member] | Ridgeview 3
Real Estate [Line Items]
Area of real estate property | ft²		88,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		3,513,000
Development and value-add properties	[4]	$ 9,317,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		08/22
Development completed and transferred to Real estate properties [Member] | Americas Ten 2
Real Estate [Line Items]
Area of real estate property | ft²		169,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		5,254,000
Development and value-add properties	[4]	$ 14,354,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		09/22
Development completed and transferred to Real estate properties [Member] | Horizon West 2 & 3
Real Estate [Line Items]
Area of real estate property | ft²		210,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		1,597,000
Development and value-add properties	[4]	$ 18,787,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		09/22
Development completed and transferred to Real estate properties [Member] | Mesa Gateway Commerce Center
Real Estate [Line Items]
Area of real estate property | ft²	[3]	147,000
Costs Transferred In Current Year	[1],[3]	$ 0
Development costs incurred, for the period	[3]	18,696,000
Development and value-add properties	[3],[4]	$ 18,696,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)	[3]	11/22
Development completed and transferred to Real estate properties [Member] | World Houston 47
Real Estate [Line Items]
Area of real estate property | ft²		139,000
Costs Transferred In Current Year	[1]	$ 4,506,000
Development costs incurred, for the period		12,517,000
Development and value-add properties	[4]	$ 17,023,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		11/22
Development completed and transferred to Real estate properties [Member] | 45 Crossing
Real Estate [Line Items]
Area of real estate property | ft²		177,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		7,998,000
Development and value-add properties	[4]	$ 25,058,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		12/22
Development completed and transferred to Real estate properties [Member] | Basswood 1 & 2
Real Estate [Line Items]
Area of real estate property | ft²		237,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		7,237,000
Development and value-add properties	[4]	$ 22,466,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		12/22
Development completed and transferred to Real estate properties [Member] | Horizon West 4
Real Estate [Line Items]
Area of real estate property | ft²		295,000
Costs Transferred In Current Year	[1]	$ 6,176,000
Development costs incurred, for the period		18,201,000
Development and value-add properties	[4]	$ 24,377,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		12/22
Development completed and transferred to Real estate properties [Member] | Tri-County Crossing 6
Real Estate [Line Items]
Area of real estate property | ft²		124,000
Costs Transferred In Current Year	[1]	$ 0
Development costs incurred, for the period		6,591,000
Development and value-add properties	[4]	$ 10,373,000
Conversion date (or anticipated conversion date, if property is in lease-up or under construction)		12/22
Lease-Up and Under Construction
Real Estate [Line Items]
Area of real estate property | ft²		3,981,000
Costs Transferred In Current Year	[1]	$ 52,687,000
Development costs incurred, for the period		235,557,000
Development and value-add properties		324,831,000
Estimated Total Cumulative Development Costs	[2]	$ 494,100,000

[1] Represents costs transferred from Prospective Development (primarily land) to Under Construction during the period. Negative amounts represent land inventory costs transferred to Under Construction.

[2] Included in these costs are development obligations of $134.8 million and tenant improvement obligations of $15.0 million on properties under development.

[3] Represents value-add acquisitions.

[4] Represents cumulative costs at the date of transfer.