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Commitments and Contingent Liabilities (Details) | 9 Months Ended
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Sep. 30, 2018 USD ($) shares
BOKF Equity, LLC [Member] |
Litigation Settlement [Abstract] |
Number of Private Equity Funds of which the Entity is a General Partner | 2
Contingent Obligations For Additional Investments in Private Equity Funds | $ 3,400,000
Judicial Ruling [Member] | Misuse of Revenues Pledged to Municipal Bonds [Member] |
Litigation Settlement [Abstract] |
Outstanding principal, accrued interest and other amounts required by bond documents | 40,000,000
Disgorged fees | 1,067,721
Litigation Settlement, Amount Awarded to Other Party | $ 600,000
Pending Litigation [Member] | Misuse of Revenues Pledged to Municipal Bonds [Member] |
Litigation Settlement [Abstract] |
Loss Contingency, Number of Plaintiffs | 2
Alleged total of judgment against nursing home operator | $ 8,000,000
Pending Litigation [Member] | Bank Participation in Fraudulent Sale of Securities by Principals [Member] |
Litigation Settlement [Abstract] |
Loss Contingency, Number of Plaintiffs | 19
Pending Litigation [Member] | Purchase of facilities from principals subject to SEC New Jersey proceedings [Member] |
Litigation Settlement [Abstract] |
Outstanding principal, accrued interest and other amounts required by bond documents | $ 60,000,000
Number of individuals who purchased facilities from the principals subject to SEC New Jersey proceedings | 2
Number of principals in SEC New Jersey proceedings | 2
Visa Membership [Member] |
Loss Contingencies [Line Items] |
Number of Visa Class B Shares Owned by Entity (in shares) | shares | 252,233
Number of Visa Class A Shares Visa Class B Shares Are Convertible To (in shares) | shares | 411,089

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- Definition Alleged total of judgment against nursing home operator + References No definition available. + Details
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- Definition Number of common stock class B owned by the entity + References No definition available. + Details
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- Definition Contingent obligation to make additional investments if limited partners are unable to perform. + References No definition available. + Details
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- Definition The number of consolidated private equity mutual funds that The Entity is a general partner of. + References No definition available. + Details
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- Definition Represents the number of Visa Class A shares that Visa Class B shares held by the Company are convertible to. + References No definition available. + Details
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- Definition Number of individuals who purchased facilities from the principals subject to SEC New Jersey proceedings + References No definition available. + Details
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- Definition Number of principals in SEC New Jersey proceedings + References No definition available. + Details
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- Definition Outstanding principal, accrued interest and other amounts required by bond documents + References No definition available. + Details
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- References No definition available. + Details
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- Details
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