Schedule III - Carrying Cost and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Carrying cost:
Gross amount at beginning	$ 8,066,830	$ 7,742,069
Additions during period:
Tenant capital improvements	132,622	88,822
Growth capital improvements	250,000	237,986
Acquisitions	28,244	23,426
Other	0	0
Total additions	410,866	350,234
Deductions during period:
Cost of real estate sold or disposed	25,004	25,473
Other	57,062	0
Total deductions	82,066	25,473
Balance at end	8,395,630	8,066,830	$ 7,742,069
Tenant capital improvements total	167,763	119,685	139,012
Reimbursement of growth capital improvements	35,100
Growth capital improvements	250,000	237,986
Accumulated depreciation:
Gross amount of accumulated depreciation at beginning	5,509,904	5,366,918
Additions during period:
Depreciation	175,085	167,297
Other	0	0
Total additions	175,085	167,297
Deductions during period:
Amount of accumulated depreciation for assets sold or disposed	24,587	24,311
Other	10,834	0
Total deductions	35,421	24,311
Balance at end	$ 5,649,568	$ 5,509,904	$ 5,366,918