Debt - Unsecure Debt - Additional Information (Details) - USD ($) $ in Thousands				12 Months Ended
		Jul. 29, 2022	Apr. 06, 2022	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 900,000
Long-term debt outstanding	[1],[2]			1,881,087	$ 1,805,414
Letters of credit, outstanding amount				2,000	7,000
$400 Million Term Loan | Unsecured Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity				400,000
$175.0 Million Term Loan
Debt Instrument [Line Items]
Remaining borrowing capacity			$ 175,000
Senior Unsecured Credit Facility | Unsecured Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity				700,000
Fund V [Member] | Subscription Line
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 100,000
Maturity date				Feb. 28, 2024
Fund V [Member] | Fund Portfolio [Member] | Subscription Line
Debt Instrument [Line Items]
Remaining borrowing capacity				$ 19,400	41,800
Long-term debt outstanding				80,600	51,200
Fund V [Member] | Fund Portfolio [Member] | Subscription Line | Unsecured Term Loan
Debt Instrument [Line Items]
Long-term debt outstanding				80,600	51,210
Revolving Credit Facility | Unsecured Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 300,000
Basis spread on variable rate				1.45%
Maturity date				Jun. 29, 2025
Long-term debt outstanding				$ 213,300	168,300
Letters of credit, outstanding amount					0
Total Available Credit				$ 86,700	131,700
Term Loan | Unsecured Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate				1.60%
Maturity date				Jun. 29, 2026
Long-term debt outstanding				$ 400,000	400,000
Term Loan | $175.0 Million Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 175,000	$ 175,000
Basis spread on variable rate				1.60%
Maturity date			Apr. 06, 2027
Long-term debt outstanding				$ 175,000	175,000
Term Loan | $75.0 Million Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 75,000		$ 75,000
Basis spread on variable rate				2.05%
Maturity date		Jul. 29, 2029
Remaining borrowing capacity				$ 75,000
Long-term debt outstanding				75,000	75,000
Letter of Credit | Fund V [Member] | Subscription Line
Debt Instrument [Line Items]
Letters of credit, outstanding amount				$ 2,000	$ 7,000

[1] Includes $1,249.8 million and $1,264.0 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented. The effective fixed rates ranged from 1.14% to 4.54%.

[2] Includes $151.4 million and $103.8 million, respectively, of variable-rate debt that is subject to interest cap agreements as of the periods presented. The effective fixed rates ranged from 3.0% to 5.50%.