Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
TWL
Regulatory Capital Requirements
Regulatory Capital	$ 86,497	$ 65,479
Regulatory Capital Requirement	3,933	5,296
Excess Regulatory Capital	82,564	60,183
DW
Regulatory Capital Requirements
Regulatory Capital	279,993	260,326
Regulatory Capital Requirement	2,233	3,131
Excess Regulatory Capital	277,760	257,195
TWD
Regulatory Capital Requirements
Regulatory Capital	53,243	54,479
Regulatory Capital Requirement	1,285	1,458
Excess Regulatory Capital	51,958	53,021
TEL
Regulatory Capital Requirements
Regulatory Capital	133,128	94,572
Regulatory Capital Requirement	32,541	33,184
Excess Regulatory Capital	100,587	61,388
TWJ
Regulatory Capital Requirements
Regulatory Capital	9,282	10,619
Regulatory Capital Requirement	3,079	2,705
Excess Regulatory Capital	6,203	7,914
TWEU
Regulatory Capital Requirements
Regulatory Capital	11,681	8,253
Regulatory Capital Requirement	6,535	7,483
Excess Regulatory Capital	5,146	770
TESL
Regulatory Capital Requirements
Regulatory Capital	6,983	6,889
Regulatory Capital Requirement	992	1,177
Excess Regulatory Capital	5,991	5,712
TESBV
Regulatory Capital Requirements
Regulatory Capital	8,596	8,527
Regulatory Capital Requirement	3,990	4,028
Excess Regulatory Capital	4,606	4,499
YB
Regulatory Capital Requirements
Regulatory Capital	9,048	9,932
Regulatory Capital Requirement	438	0
Excess Regulatory Capital	8,610	9,932
TDIFC
Regulatory Capital Requirements
Regulatory Capital	712	283
Regulatory Capital Requirement	30	30
Excess Regulatory Capital	682	253
ICDLC
Regulatory Capital Requirements
Regulatory Capital	11,662	10,349
Regulatory Capital Requirement	799	766
Excess Regulatory Capital	10,863	9,583
ICDLT
Regulatory Capital Requirements
Regulatory Capital	9,143	7,992
Regulatory Capital Requirement	4,539	4,126
Excess Regulatory Capital	4,604	3,866
TWSA
Regulatory Capital Requirements
Regulatory Capital	152	735
Regulatory Capital Requirement	62	63
Excess Regulatory Capital	90	672
TAPL
Regulatory Capital Requirements
Regulatory Capital	115	148
Regulatory Capital Requirement	39	39
Excess Regulatory Capital	76	109
TW SEF
Regulatory Capital Requirements
Financial Resources	89,299	68,063
Required Financial Resources	19,000	18,000
Excess Financial Resources	70,299	50,063
Liquid Financial Assets	41,534	34,190
Required Liquid Financial Assets	4,750	4,500
Excess Liquid Financial Assets	36,784	29,690
DW SEF
Regulatory Capital Requirements
Financial Resources	16,060	15,027
Required Financial Resources	8,787	8,511
Excess Financial Resources	7,273	6,516
Liquid Financial Assets	11,769	10,664
Required Liquid Financial Assets	2,197	2,128
Excess Liquid Financial Assets	$ 9,572	$ 8,536

Amount of net capital of futures commission merchant (FCM) in excess of required net capital per Commodity Futures Trading Commission's (CFTC) requirement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name CFTC Regulation
-Number 1
-Section 17
-Paragraph a
-Subparagraph (1)(i)
-Publisher CFTC

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- Definition

Amount of adjusted net capital of futures commission merchant (FCM) per Commodity Futures Trading Commission's (CFTC) requirement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name CFTC Regulation
-Number 1
-Section 17
-Paragraph c
-Subparagraph (5)
-Publisher CFTC

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Amount of net capital required to be maintained by futures commission merchant (FCM) per Commodity Futures Trading Commission's (CFTC) requirement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name CFTC Regulation
-Number 1
-Section 17
-Paragraph a
-Subparagraph (1)(i)
-Publisher CFTC

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- Definition

The amount by which actual liquid financial assets exceeds (does not exceed) required liquid financial assets under the Commodity Exchange Act

+ References

No definition available.

+ Details

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- Definition

Amount by which the entity's regulatory capital (as defined) exceeds the requirement.

+ References

No definition available.

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- Definition

Liquid financial assets calculated under the Commodity Exchange Act.

+ References

No definition available.

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- Definition

Regulatory capital as calculated for each entity under applicable regulations.

+ References

No definition available.

+ Details

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- Definition

Amount of regulatory capital required to be maintained for each entity under applicable regulations.

+ References

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- Definition

Amount of liquid financial assets required to be maintained under the Commodity Exchange Act.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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