Condensed Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Cost	$ 48,875,505	$ 49,935,296
Restricted cash	901	3,701
Unamortized debt issuance costs	$ 85,373	$ 102,290
Common stock, shares issued (in shares)	1,036,579,877	922,574,582
Common stock, shares outstanding (in shares)	1,036,579,877	922,574,582
Class I
Common stock, shares outstanding (in shares)	682,310,681
Class I | Common Stock
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	682,310,681	591,237,616
Class S
Common stock, shares outstanding (in shares)	340,729,696
Class S | Common Stock
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	340,729,696	282,541,041
CLASS D
Common stock, shares outstanding (in shares)	13,539,500
CLASS D | Common Stock
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	13,539,500	48,795,925
Non-controlled/non-affiliated investments
Cost	$ 46,493,827	$ 47,528,550	[1],[2]
Non-controlled/affiliated investments
Cost	558	719	[1],[2]
Controlled/affiliated investments
Cost	$ 2,381,120	$ 2,406,027

[1] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).

[2] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Consolidated Schedule of Investments) are denominated in dollars. As of December 31, 2022, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Swiss Francs (CHF), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and New Zealand Dollars (NZD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.