XML 70 R60.htm IDEA: XBRL DOCUMENT v3.22.1

Employee Incentive Plans (2007 Stock Incentive Plan, ROI Summary) (Details)	3 Months Ended
	Mar. 31, 2022 shares
Stock Incentive Plan Granted Shares Adjustment	6,882
2007 Stock Incentive Plan (Shares)
Beginning Balance	4,782,967	[1]
Shares Canceled	(21,358)
Ending Balance	4,761,609
[1] Stock Incentive Plan number of granted restricted stock units related to 2021 was adjusted by 6,882 additional restricted stock units during the three months ended March 31, 2022.

X

- Definition

Shares granted, net of shares distributed and forfeited.

+ References

No definition available.

+ Details

Name:	ibkr_NetShares
Namespace Prefix:	ibkr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Shares cancelled during the period.

+ References

No definition available.

+ Details

Name:	ibkr_SharesForfeited
Namespace Prefix:	ibkr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Stock Incentive Plan Granted Shares Adjustment for prior year end

+ References

No definition available.

+ Details

Name:	ibkr_StockIncentivePlanGrantedSharesAdjustment
Namespace Prefix:	ibkr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=ibkr_StockIncentivePlanSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: