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Regulatory requirements (Details) | 6 Months Ended
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Jun. 30, 2025 USD ($)
Regulatory Capital Requirements [Line Items] |
Regulatory capital required to be maintained | $ 4,150,000
Oppenheimer |
Regulatory Capital Requirements [Line Items] |
Required percentage of net capital to aggregate customer-related debit items (as a percent) | 2.00%
Net capital | $ 408,900,000
Aggregate indebtedness (as a percent) | 30.56%
Excess capital | $ 382,200,000
Freedom |
Regulatory Capital Requirements [Line Items] |
Net capital | $ 3,600,000
Aggregate indebtedness (as a percent) | 6.67%
Freedom maintain net capital equal to the greater | $ 100,000
Net capital in excess of minimum required | $ 3,500,000
Oppenheimer Europe Ltd |
Regulatory Capital Requirements [Line Items] |
Common equity tier 1 ratio (as a percent) | 107.00%
Common equity tier 1 ratio required (as a percent) | 56.00%
Tier 1 capital ratio required (as a percent) | 75.00%
Total capital ratio (as a percent) | 144.00%
Total capital ratio required (as a percent) | 100.00%
Oppenheimer Investments Asia Ltd. |
Regulatory Capital Requirements [Line Items] |
Net capital | $ 2,100,000
Excess liquid capital under hong kong SFC rules | 1,700,000
Regulatory capital required to be maintained | $ 382,168

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- Definition Amount of net capital in excess of minimum required net capital, calculated under Alternative Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Rule 15c3-1 -Number 240 -Section 15c3-1 -Publisher SEC + Details
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- Definition Minimum amount of net capital required to be maintained by broker-dealer and its subsidiary, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Rule 15c3-1 -Number 240 -Section 15c3-1 -Publisher SEC + Details
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