Organization and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Thousands					1 Months Ended		9 Months Ended
	Jul. 11, 2022 $ / shares	Sep. 19, 2020	Mar. 19, 2015 USD ($) $ / shares	May 13, 2014 USD ($) shares	Sep. 30, 2024 USD ($)	Oct. 31, 2022	Sep. 30, 2025 USD ($) Agreement shares	Dec. 31, 2024 USD ($)
Inception date							Mar. 20, 2014
Number of wholly-owned subsidiaries							3
Number of additional subscription agreements \| Agreement							2
Term of subscription agreements		1 year
Extended term for successive periods of subscription agreements							1 year
Commitment period description							The Commitment Period commenced on September 19, 2014 (the “Initial Closing Date”) and ended on September 19, 2017, the third anniversary of the Initial Closing Date. In accordance with the Company’s Limited Liability Company Agreement, the Company may complete investment transactions that were significantly in process as of the end of the Commitment Period and which the Company reasonably expects to be consummated prior to 90 days subsequent to the expiration date of the Commitment Period.
Significantly investment completion period upon expiration of commitment period							90 days
Commitments from investors							$ 1,803,465	$ 1,803,465
Reduction in undrawn commitments \| $ / shares	$ 10.43
Percentage of reduction of overall remaining available capital commitments	41.18%
Recontribute amount distribution percentage							75.00%
Recallable amount							$ 100,875
Impact of individual member's percentage							0.00%
Maximum
Percentage of aggregate cumulative invested amount in existing portfolio companies					11.20%	10.00%
Aggregate cumulative invested amount in existing portfolio companies					$ 226,300
Commitments from investors units \| shares							18,034,649
Minimum
Commitments from investors units \| shares							20,134,698
Common Stock
Number of units sold and issued \| shares				10
Aggregate purchase price				$ 1
Commitments from investors			$ 2,013,470
Commitment obligation per unit \| $ / shares			$ 100
Reduction in undrawn commitments \| $ / shares	$ 10.43
Percentage of reduction of overall remaining available capital commitments	41.18%

TCW Direct Lending LLC 10-Q