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Regulatory Capital Requirements (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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TWL |  |
Regulatory Capital Requirements |  |
Regulatory Capital | $ 42,317 | $ 18,986
Regulatory Capital Requirement | 2,396 | 2,698
Excess Regulatory Capital | 39,921 | 16,288
DW |  |
Regulatory Capital Requirements |  |
Regulatory Capital | 52,016 | 41,164
Regulatory Capital Requirement | 2,026 | 1,803
Excess Regulatory Capital | 49,990 | 39,361
TWD |  |
Regulatory Capital Requirements |  |
Regulatory Capital | 33,807 | 24,042
Regulatory Capital Requirement | 664 | 599
Excess Regulatory Capital | 33,143 | 23,443
TEL |  |
Regulatory Capital Requirements |  |
Regulatory Capital | 49,611 | 46,157
Regulatory Capital Requirement | 21,856 | 17,493
Excess Regulatory Capital | 27,755 | 28,664
TWJ |  |
Regulatory Capital Requirements |  |
Regulatory Capital | 11,851 | 10,592
Regulatory Capital Requirement | 8,565 | 3,413
Excess Regulatory Capital | 3,286 | 7,179
TWEU |  |
Regulatory Capital Requirements |  |
Regulatory Capital | 6,217 |
Regulatory Capital Requirement | 1,701 |
Excess Regulatory Capital | 4,516 |
TW SEF |  |
Regulatory Capital Requirements |  |
Financial Resources | 21,303 | 31,232
Required Financial Resources | 10,500 | 10,500
Excess Financial Resources | 10,803 | 20,732
Liquid Financial Assets | 18,168 | 16,662
Required Liquid Financial Assets | 5,250 | 5,250
Excess Liquid Financial Assets | 12,918 | 11,412
DW SEF |  |
Regulatory Capital Requirements |  |
Financial Resources | 13,707 | 17,837
Required Financial Resources | 5,505 | 5,169
Excess Financial Resources | 8,202 | 12,668
Liquid Financial Assets | 7,583 | 11,888
Required Liquid Financial Assets | 2,753 | 2,585
Excess Liquid Financial Assets | $ 4,830 | $ 9,303

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- Definition Amount of net capital of futures commission merchant (FCM) in excess of required net capital per Commodity Futures Trading Commission's (CFTC) requirement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 17 -Number 1 -Section 17 -Paragraph (a) -Subparagraph (1)(i) + Details
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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 -Publisher SEC -Name Rule 17 -Number 1 -Section 17 -Paragraph (a) -Subparagraph (5) + Details
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- Definition 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 -Publisher SEC -Name Rule 17 -Number 1 -Section 17 -Paragraph (a) -Subparagraph (1)(i) + Details
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- Definition Amount by which the entity's regulatory capital (as defined) exceeds the requirement. + References No definition available. + Details
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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 No definition available. + Details
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