| Component: (Network and Table) | |
|---|---|
| Network | 1002000 - Statement - Consolidated Statements of Comprehensive Income (http://www.bokf.com/role/ConsolidatedStatementsOfComprehensiveIncome) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000875357 (http://www.sec.gov/CIK) |
| Statement of Other Comprehensive Income [Abstract] | Period [Axis] | ||
|---|---|---|---|
2012-01-01 - 2012-12-31 | 2011-01-01 - 2011-12-31 | 2010-01-01 - 2010-12-31 | |
Statement of Other Comprehensive Income [Abstract] | |||
Net income | 354,124,000 | 289,824,000 | 248,294,000 |
Other Comprehensive Income (Loss), before Tax [Abstract] | |||
Net change in unrealized gain (loss) | 66,197,000 | 47,287,000 | 185,463,000 |
Other-than-temporary impairment losses recognized in earnings | 7,351,000 | 23,507,000 | 27,809,000 |
Reclassification adjustment for net (gains) losses realized and included in earnings | (33,392,000) | (33,840,000) | (21,618,000) |
Amortization of unrealized gain on investment securities transferred from available for sale | (6,601,000) | (1,357,000) | 0 |
Other comprehensive income before income taxes | 33,555,000 | 35,597,000 | 191,654,000 |
Other Comprehensive Income (Loss), Tax | (12,614,000) | (14,457,000) | (73,075,000) |
Other Comprehensive Income (Loss), Net of Tax | 20,941,000 | 21,140,000 | 118,579,000 |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | 375,065,000 | 310,964,000 | 366,873,000 |
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest | 2,933,000 | 3,949,000 | 1,540,000 |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent | 372,132,000 | 307,015,000 | 365,333,000 |