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Debt - Schedule of Long-term Debt Instruments (Details)	9 Months Ended
	Sep. 30, 2025 USD ($) property	Sep. 30, 2025 USD ($) option property	Sep. 30, 2025 USD ($) property	Sep. 30, 2025 USD ($) property	Sep. 30, 2025 USD ($) property	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Debt
Duration used in interest rate calculation (in days)	360 days
Number of office properties | property	6	6	6	6	6
Hollywood Media Portfolio CMBS, net | Interest Rate Cap | Designated as hedging Instrument
Debt
Notional amount	$ 539,000,000	$ 539,000,000	$ 539,000,000	$ 539,000,000	$ 539,000,000
Hollywood Media Portfolio CMBS, net | Interest Rate Cap | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	6.01%	6.01%	6.01%	6.01%	6.01%
Hollywood Media Portfolio CMBS, net | Interest Rate Swap | Designated as hedging Instrument
Debt
Notional amount	$ 351,200,000	$ 351,200,000	$ 351,200,000	$ 351,200,000	$ 351,200,000
Hollywood Media Portfolio CMBS, net | Interest Rate Swap | Designated as hedging Instrument | Cash Flow Hedging
Debt
Interest rate (as a percent)	3.31%	3.31%	3.31%	3.31%	3.31%
Hollywood Media Portfolio CMBS, net | Interest Rate Swap | Designated as hedging Instrument
Debt
Notional amount	$ 179,600,000	$ 179,600,000	$ 179,600,000	$ 179,600,000	$ 179,600,000
Hollywood Media Portfolio CMBS, net | Interest Rate Swap | Designated as hedging Instrument | Cash Flow Hedging
Debt
Interest rate (as a percent)	4.13%	4.13%	4.13%	4.13%	4.13%
Hollywood Media Portfolio CMBS, net | Interest Rate Caps | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	6.01%	6.01%	6.01%	6.01%	6.01%
Hollywood Media Portfolio CMBS, net | Interest Rate Caps | Designated as hedging Instrument | Cash Flow Hedging
Debt
Notional amount	$ 539,000,000	$ 539,000,000	$ 539,000,000	$ 539,000,000	$ 539,000,000
1918 Eighth | Interest Rate Caps | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	5.00%	5.00%	5.00%	5.00%	5.00%
Sunset Glenoaks Studios | Interest Rate Caps | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	4.50%	4.50%	4.50%	4.50%	4.50%
Office Portfolio CMBS | Interest Rate Swap | Designated as hedging Instrument
Debt
Notional amount	$ 222,500,000	$ 222,500,000	$ 222,500,000	$ 222,500,000	$ 222,500,000
Office Portfolio CMBS | Interest Rate Swap | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	3.41%	3.41%	3.41%	3.41%	3.41%
Office Portfolio CMBS | Interest Rate Swap | Designated as hedging Instrument | Cash Flow Hedging
Debt
Interest rate (as a percent)	3.35%	3.35%	3.35%	3.35%	3.35%
Office Portfolio CMBS | Interest Rate Swap | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	3.41%	3.41%	3.41%	3.41%	3.41%
Office Portfolio CMBS | Interest Rate Caps | Designated as hedging Instrument
Debt
Notional amount	$ 250,000,000	$ 250,000,000	$ 250,000,000	$ 250,000,000	$ 250,000,000
Office Portfolio CMBS | Interest Rate Caps | Designated as hedging Instrument | Cash Flow Hedging, Partial
Debt
Interest rate (as a percent)	4.96%	4.96%	4.96%	4.96%	4.96%
Unsecured debt
Debt
TOTAL	$ 1,650,000,000	$ 1,650,000,000	$ 1,650,000,000	$ 1,650,000,000	$ 1,650,000,000		$ 2,435,000,000
Joint venture partner debt	1,650,000,000	1,650,000,000	1,650,000,000	1,650,000,000	1,650,000,000		2,435,000,000
Unsecured debt | Series B notes
Debt
TOTAL	0	0	0	0	0		259,000,000
Joint venture partner debt	$ 0	$ 0	$ 0	$ 0	$ 0		259,000,000
Interest rate (as a percent)	4.69%	4.69%	4.69%	4.69%	4.69%
Unsecured debt | Series C notes
Debt
TOTAL	$ 0	$ 0	$ 0	$ 0	$ 0		56,000,000
Joint venture partner debt	$ 0	$ 0	$ 0	$ 0	$ 0		56,000,000
Interest rate (as a percent)	4.79%	4.79%	4.79%	4.79%	4.79%
Unsecured debt | Series D notes
Debt
TOTAL	$ 0	$ 0	$ 0	$ 0	$ 0		150,000,000
Joint venture partner debt	$ 0	$ 0	$ 0	$ 0	$ 0		150,000,000
Interest rate (as a percent)	3.98%	3.98%	3.98%	3.98%	3.98%
Unsecured debt | 3.95% Registered senior notes
Debt
TOTAL	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000		400,000,000
Joint venture partner debt	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000		400,000,000
Interest rate (as a percent)	3.95%	3.95%	3.95%	3.95%	3.95%
Unsecured debt | 4.65% Registered senior notes
Debt
TOTAL	$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 500,000,000		500,000,000
Joint venture partner debt	$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 500,000,000		500,000,000
Interest rate (as a percent)	4.65%	4.65%	4.65%	4.65%	4.65%
Unsecured debt | 3.25% Registered senior notes
Debt
TOTAL	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000		400,000,000
Joint venture partner debt	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000	$ 400,000,000		400,000,000
Interest rate (as a percent)	3.25%	3.25%	3.25%	3.25%	3.25%
Unsecured debt | 5.95% Registered senior notes
Debt
TOTAL	$ 350,000,000	$ 350,000,000	$ 350,000,000	$ 350,000,000	$ 350,000,000		350,000,000
Joint venture partner debt	$ 350,000,000	$ 350,000,000	$ 350,000,000	$ 350,000,000	$ 350,000,000		350,000,000
Interest rate (as a percent)	5.95%	5.95%	5.95%	5.95%	5.95%
Secured debt
Debt
TOTAL	$ 1,926,600,000	$ 1,926,600,000	$ 1,926,600,000	$ 1,926,600,000	$ 1,926,600,000		1,752,667,000
Joint venture partner debt	1,926,600,000	1,926,600,000	1,926,600,000	1,926,600,000	1,926,600,000		1,752,667,000
Secured debt | Hollywood Media Portfolio CMBS, net
Debt
TOTAL	1,069,767,000	1,069,767,000	1,069,767,000	1,069,767,000	1,069,767,000		1,069,767,000
Joint venture partner debt	1,069,767,000	1,069,767,000	1,069,767,000	1,069,767,000	1,069,767,000		1,069,767,000
Payments to acquire bonds			30,200,000
Secured debt | Hollywood Media Portfolio CMBS
Debt
Hollywood Media Portfolio CMBS(7)	$ 1,100,000,000	$ 1,100,000,000	$ 1,100,000,000	$ 1,100,000,000	$ 1,100,000,000		1,100,000,000
Basis spread on variable rate (as a percent)				1.10%
Number of properties | property	8	8	8	8	8
Secured debt | Acquired Hollywood Media Portfolio CMBS debt
Debt
Acquired Hollywood Media Portfolio CMBS debt	$ (30,233,000)	$ (30,233,000)	$ (30,233,000)	$ (30,233,000)	$ (30,233,000)		(30,233,000)
Basis spread on variable rate (as a percent)				2.11%
Secured debt | Element LA
Debt
TOTAL	0	0	0	$ 0	0		168,000,000
Joint venture partner debt	$ 0	$ 0	$ 0	$ 0	$ 0		168,000,000
Interest rate (as a percent)	4.59%	4.59%	4.59%	4.59%	4.59%
Secured debt | 1918 Eighth
Debt
TOTAL	$ 285,000,000	$ 285,000,000	$ 285,000,000	$ 285,000,000	$ 285,000,000		314,300,000
Joint venture partner debt	285,000,000	285,000,000	285,000,000	$ 285,000,000	285,000,000		314,300,000
Basis spread on variable rate (as a percent)				6.16%
Debt instrument, maximum capacity	285,000,000	285,000,000	285,000,000	$ 285,000,000	285,000,000
Secured debt | Hill7
Debt
TOTAL	101,000,000	101,000,000	101,000,000	101,000,000	101,000,000		101,000,000
Joint venture partner debt	$ 101,000,000	$ 101,000,000	$ 101,000,000	$ 101,000,000	$ 101,000,000		101,000,000
Interest rate (as a percent)	3.38%	3.38%	3.38%	3.38%	3.38%
Secured debt | Sunset Glenoaks Studios
Debt
TOTAL	$ 0	$ 0	$ 0	$ 0	$ 0		99,600,000
Joint venture partner debt	$ 0	$ 0	0	$ 0	0		99,600,000
Basis spread on variable rate (as a percent)				3.10%
Extension term	1 year
Number of extension options | option		2
Debt instrument, maximum capacity	$ 100,600,000	$ 100,600,000	100,600,000	$ 100,600,000	100,600,000
Secured debt | Office Portfolio CMBS
Debt
TOTAL	470,833,000	470,833,000	470,833,000	470,833,000	470,833,000		0
Joint venture partner debt	$ 470,833,000	$ 470,833,000	470,833,000	$ 470,833,000	470,833,000		0
Basis spread on variable rate (as a percent)				3.76%
Extension term	1 year
Number of extension options | option		3
Debt instrument, maximum capacity	$ 475,000,000.0	$ 475,000,000.0	475,000,000.0	$ 475,000,000.0	475,000,000.0
Secured debt | Minimum | Sunset Glenoaks Studios
Debt
Basis spread on variable rate (as a percent)				2.50%
Secured debt | Maximum | Sunset Glenoaks Studios
Debt
Basis spread on variable rate (as a percent)				3.10%
Secured debt | Maximum | Office Portfolio CMBS
Debt
Basis spread on variable rate (as a percent)				3.76%
Unsecured and secured debt
Debt
TOTAL	3,576,600,000	3,576,600,000	3,576,600,000	$ 3,576,600,000	3,576,600,000		4,187,667,000
Unamortized deferred financing costs/loan discounts	(21,492,000)	(21,492,000)	(21,492,000)	(21,492,000)	(21,492,000)		(10,823,000)
TOTAL UNSECURED AND SECURED DEBT, NET	3,555,108,000	3,555,108,000	3,555,108,000	3,555,108,000	3,555,108,000		4,176,844,000
Joint venture partner debt	3,576,600,000	3,576,600,000	3,576,600,000	3,576,600,000	3,576,600,000		4,187,667,000
Joint venture partner debt
Debt
TOTAL	66,136,000	66,136,000	66,136,000	66,136,000	66,136,000		66,136,000
TOTAL UNSECURED AND SECURED DEBT, NET	66,136,000	66,136,000	66,136,000	66,136,000	66,136,000		66,136,000
Joint venture partner debt	$ 66,136,000	$ 66,136,000	$ 66,136,000	$ 66,136,000	$ 66,136,000		66,136,000
Interest rate (as a percent)	4.50%	4.50%	4.50%	4.50%	4.50%
Extension term	2 years
Number of extension options | option		2
Revolving credit facility | Unsecured debt
Debt
TOTAL	$ 0	$ 0	$ 0	$ 0	$ 0		320,000,000
Joint venture partner debt	0	0	0	$ 0	0		320,000,000
Basis spread on variable rate (as a percent)				1.41%
Maximum borrowing capacity	795,300,000	795,300,000	795,300,000	$ 795,300,000	795,300,000	$ 775,000,000	$ 900,000,000
Maximum borrowing capacity including accordion feature	$ 2,000,000,000	$ 2,000,000,000	2,000,000,000	2,000,000,000	$ 2,000,000,000
Extension term	6 months
Number of extension options		2			2
Revolving credit facility | Unsecured debt | Credit Facility December 2025 Maturity Date
Debt
Maximum borrowing capacity	$ 333,300,000	$ 333,300,000	333,300,000	333,300,000	$ 333,300,000
Extension term	6 months
Revolving credit facility | Unsecured debt | Credit Facility December 2028 Maturity Date
Debt
Maximum borrowing capacity	$ 462,000,000.0	$ 462,000,000.0	$ 462,000,000.0	$ 462,000,000.0	$ 462,000,000.0
Extension term	6 months
Revolving credit facility | Unsecured debt | Minimum
Debt
Basis spread on variable rate (as a percent)				1.15%
Commitment fee (as a percent)				0.15%
Revolving credit facility | Unsecured debt | Maximum
Debt
Basis spread on variable rate (as a percent)				1.60%
Commitment fee (as a percent)				0.30%
Revolving credit facility | Secured debt
Debt
Extension term	1 year
Number of extension options | property					3

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