Investments in Real Estate - Summary of Information Related to Investments in Real Estate (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	$ 2,264,296
Initial Cost to Company
Land	222,555
Buildings and Improve- ments	2,156,473
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	570,823
Gross Amount at Which Carried at Close of Period
Land	222,555
Buildings and Improvements	2,727,296
Total	2,949,851	$ 2,967,431	$ 2,925,575	$ 2,834,450
Accumulated Depreciation	580,403	$ 517,329	$ 466,405	$ 418,205
Office Properties \| Wells Fargo Center– North Tower 333 S. Grand Avenue
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	500,000
Initial Cost to Company
Land	41,024
Buildings and Improve- ments	449,170
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	159,563
Gross Amount at Which Carried at Close of Period
Land	41,024
Buildings and Improvements	608,733
Total	649,757
Accumulated Depreciation	118,479
Office Properties \| BOA Plaza 333 S. Hope Street
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	400,000
Initial Cost to Company
Land	54,163
Buildings and Improve- ments	344,310
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	83,679
Gross Amount at Which Carried at Close of Period
Land	54,163
Buildings and Improvements	427,989
Total	482,152
Accumulated Depreciation	126,413
Office Properties \| Wells Fargo Center– South Tower 355 S. Grand Avenue
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	260,796
Initial Cost to Company
Land	21,231
Buildings and Improve- ments	389,138
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	83,404
Gross Amount at Which Carried at Close of Period
Land	21,231
Buildings and Improvements	472,542
Total	493,773
Accumulated Depreciation	72,529
Office Properties \| Gas Company Tower 525-555 W. Fifth Street
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	465,000
Initial Cost to Company
Land	20,742
Buildings and Improve- ments	392,650
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	77,204
Gross Amount at Which Carried at Close of Period
Land	20,742
Buildings and Improvements	469,854
Total	490,596
Accumulated Depreciation	88,320
Office Properties \| EY Plaza 725 S. Figueroa Street
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	305,000
Initial Cost to Company
Land	47,385
Buildings and Improve- ments	242,504
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	94,052
Gross Amount at Which Carried at Close of Period
Land	47,385
Buildings and Improvements	336,556
Total	383,941
Accumulated Depreciation	92,427
Office Properties \| 777 Tower 777 S. Figueroa Street
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	275,000
Initial Cost to Company
Land	38,010
Buildings and Improve- ments	293,958
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	43,053
Gross Amount at Which Carried at Close of Period
Land	38,010
Buildings and Improvements	337,011
Total	375,021
Accumulated Depreciation	59,069
Retail Property \| FIGat7th 735 S. Figueroa Street
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encum- brances	58,500
Initial Cost to Company
Land	0
Buildings and Improve- ments	44,743
Costs Capitalized Subsequent to Acquisition
Buildings and Improve- ments	29,868
Gross Amount at Which Carried at Close of Period
Land	0
Buildings and Improvements	74,611
Total	74,611
Accumulated Depreciation	$ 23,166

Brookfield DTLA Fund Office Trust Investor Inc. 10-K