Debt - Summary of Outstanding Debt (Parenthetical) (Details)		9 Months Ended	12 Months Ended
	Sep. 27, 2023	Sep. 30, 2023	Dec. 31, 2022
1633 Broadway [Member]
Debt Instrument [Line Items]
Ownership percentage of Property		90.00%	90.00%
One Market Plaza [Member]
Debt Instrument [Line Items]
Ownership percentage of Property		49.00%	49.00%
300 Mission Street [Member]
Debt Instrument [Line Items]
Ownership percentage of Property	31.10%	31.10%	31.10%
1301 Avenue of the Americas [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Mortgages and Notes Payable with Variable Rate [Member]
Debt Instrument [Line Items]
Capped interest rate		4.50%	4.50%