XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.25.1

Comprehensive Income (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Comprehensive Income Detail [Abstract] |
Comprehensive Income Table |
|  | Three Months Ended March 31,
|  | 2025 |  | 2024
|  | (in millions, except share or per share amounts)
Comprehensive income available for common stockholders |  | $ | 241 |  | $ | 149
Earnings per share on comprehensive income |  |  |  |  |  |
Basic |  | $ | 2.21 |  | $ | 1.39
Diluted |  | $ | 2.19 |  | $ | 1.37
Weighted average common shares outstanding |  |  |  |  |  |
Basic |  |  | 108,923,381 |  |  | 107,070,830
Diluted |  |  | 109,865,741 |  |  | 108,149,440

X
- References No definition available. + Details
Name: | ibkr_ComprehensiveIncomeDetailAbstract
Namespace Prefix: | ibkr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 1 -Section 45 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1 + Details
Name: | us-gaap_ScheduleOfComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration