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Income Taxes (Details) (USD $)
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3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2010
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Sep. 30, 2010
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Jun. 30, 2010
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Mar. 31, 2010
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Current Tax Provision Benefit [Line Items] | |||||||||||
| Federal current tax provision | $ 10,468,000 | $ 40,675,000 | $ (326,659,000) | ||||||||
| State current tax provision | (5,040,000) | 29,539,000 | 9,860,000 | ||||||||
| Total current tax provision (benefit) | 5,428,000 | 70,214,000 | (316,799,000) | ||||||||
| Deferred Tax Provision Benefit [Line Items] | |||||||||||
| Federal deferred tax provision | 158,709,000 | (30,243,000) | (267,872,000) | ||||||||
| State deferred tax provision | 484,000 | (7,000) | 667,000 | ||||||||
| Total deferred tax provision (benefit) | 159,193,000 | (30,250,000) | (267,205,000) | ||||||||
| Provision for income taxes | 41,954,000 | 38,942,000 | 48,980,000 | 34,745,000 | 35,048,000 | 29,690,000 | 13,319,000 | (38,093,000) | 164,621,000 | 39,964,000 | (584,004,000) |
| Gross Unrecognized Tax Benefits Reconcilement [Line Items] | |||||||||||
| Unrecognized Tax Benefits, Beginning Balance | 49,506,000 | 17,214,000 | 49,506,000 | 17,214,000 | 0 | ||||||
| Gross increases for tax positions taken during prior years | 0 | 32,292,000 | 10,750,000 | ||||||||
| Gross increases for tax positions taken during current year | 0 | 0 | 6,464,000 | ||||||||
| Gross decreases for tax positions taken during prior years | (37,610,000) | 0 | 0 | ||||||||
| Unrecognized Tax Benefits, Ending Balance | 11,896,000 | 49,506,000 | 11,896,000 | 49,506,000 | 17,214,000 | ||||||
| Provision (benefit) for income taxes reconcilement | |||||||||||
| Provision (benefit) for income taxes computed at the statutory rate | 247,532,000 | 123,310,000 | (1,287,364,000) | ||||||||
| Tax-exempt interest income | (9,695,000) | (6,680,000) | (5,561,000) | ||||||||
| Tax-exempt bank owned life insurance income | (21,169,000) | (20,595,000) | (19,205,000) | ||||||||
| Dividends | (17,744,000) | 0 | 0 | ||||||||
| Asset securitization activities | 0 | 46,160,000 | (3,179,000) | ||||||||
| Federal tax loss carryforward / carryback | 0 | 0 | (12,847,000) | ||||||||
| General business credits | (31,269,000) | (23,360,000) | (17,602,000) | ||||||||
| Reversals of valuation allowance | 0 | (899,000) | 0 | ||||||||
| Capital loss | (7,000,000) | (62,681,000) | 0 | ||||||||
| Loan acquisitions | 0 | (43,650,000) | (159,895,000) | ||||||||
| Goodwill impairment | 0 | 0 | 908,263,000 | ||||||||
| State income taxes, net | (2,962,000) | 19,196,000 | 6,842,000 | ||||||||
| Other, net | 6,928,000 | 9,163,000 | 6,544,000 | ||||||||
| Provision for income taxes | 41,954,000 | 38,942,000 | 48,980,000 | 34,745,000 | 35,048,000 | 29,690,000 | 13,319,000 | (38,093,000) | 164,621,000 | 39,964,000 | (584,004,000) |
| Deferred Tax Assets | |||||||||||
| Allowance for credit losses | 348,269,000 | 457,692,000 | 348,269,000 | 457,692,000 | |||||||
| Loss and other carryforwards | 217,877,000 | 262,504,000 | 217,877,000 | 262,504,000 | |||||||
| Fair value adjustments | 92,569,000 | 106,855,000 | 92,569,000 | 106,855,000 | |||||||
| Pension and other employee benefits | 0 | 5,671,000 | 0 | 5,671,000 | |||||||
| Accrued expense / prepaid | 32,736,000 | 39,685,000 | 32,736,000 | 39,685,000 | |||||||
| Purchase accounting adjustments | 10,556,000 | 11,773,000 | 10,556,000 | 11,773,000 | |||||||
| Other | 15,661,000 | 20,309,000 | 15,661,000 | 20,309,000 | |||||||
| Total deferred tax assets | 717,668,000 | 904,489,000 | 717,668,000 | 904,489,000 | |||||||
| Deferred Tax Liabilities | |||||||||||
| Lease financing | 65,029,000 | 87,735,000 | 65,029,000 | 87,735,000 | |||||||
| Purchase accounting adjustments | 51,754,000 | 65,787,000 | 51,754,000 | 65,787,000 | |||||||
| Loan origination costs | 51,124,000 | 43,182,000 | 51,124,000 | 43,182,000 | |||||||
| Mortgage servicing rights | 45,948,000 | 43,541,000 | 45,948,000 | 43,541,000 | |||||||
| Securities adjustments | 40,273,000 | 66,090,000 | 40,273,000 | 66,090,000 | |||||||
| Operating assets | 33,511,000 | 15,161,000 | 33,511,000 | 15,161,000 | |||||||
| Pension and other employee benefits | 19,290,000 | 0 | 19,290,000 | 0 | |||||||
| Partnership investments | 6,761,000 | 8,429,000 | 6,761,000 | 8,429,000 | |||||||
| Other | 15,558,000 | 4,441,000 | 15,558,000 | 4,441,000 | |||||||
| Total deferred tax liabilities | 329,248,000 | 334,366,000 | 329,248,000 | 334,366,000 | |||||||
| Net deferred tax asset before valuation | 388,420,000 | 570,123,000 | 388,420,000 | 570,123,000 | |||||||
| Valuation allowance | (23,594,000) | (31,817,000) | (23,594,000) | (31,817,000) | |||||||
| Total net deferred tax asset | 364,826,000 | 538,306,000 | 364,826,000 | 538,306,000 | |||||||
| Income Taxes Textuals [Abstract] | |||||||||||
| Interest recognized on income tax assessments or income tax refunds | 100,000 | 2,200,000 | |||||||||
| Total interest accrued on the unrecognized tax benefits | 2,300,000 | 2,300,000 | |||||||||
| Tax benefits associated with securities transactions | 1,300,000 | 100,000 | 1,300,000 | 100,000 | 3,600,000 | ||||||
| Net operating loss carryforward | 111,000,000 | 111,000,000 | |||||||||
| Net operating loss carryforward expiration | 2023 | ||||||||||
| Alternative minimum tax credit carryforward | 37,200,000 | 37,200,000 | |||||||||
| General business credit carryover | 46,100,000 | 46,100,000 | |||||||||
| General business credit carryover expiration | 2029 | ||||||||||
| Capital loss carryforward | 23,600,000 | 23,600,000 | |||||||||
| Capital loss carryforward expiration | 2015 | ||||||||||
| Decrease in deferred tax asset valuation allowance | $ 8,200,000 | ||||||||||
| X | ||||||||||
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- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) related to securities transactions. No definition available.
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- Details
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax effects, before any related valuation allowance, arising from unrealized losses or reversals of income on certain investments in debt and equity securities, which can only be deducted for tax purposes when the losses or reversals of income are realized No definition available.
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| X | ||||||||||
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- Definition
For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods This is the net deferred tax asset or liability before valuation allowance against deferred tax assets. No definition available.
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax effects, before any related valuation allowance, attributable to the difference between the tax basis of acquired assets and the basis of acquired assets computed in accordance with generally accepted accounting principles. The difference in basis is attributable to different capitalization of costs or amortization methodologies, which will decrease future taxable income when such basis difference is realized. No definition available.
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to investments in partnerships, which are either not controlled or have separate reporting requirements, due to a difference between the tax basis and the generally accepted accounting principles basis which will increase future taxable income. No definition available.
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of pension and employee benefit liabilities funded in advance and the basis of a prepaid pension asset and employee benefits determined in accordance with generally accepted accounting principles. The difference in basis of such costs will increase future taxable income when such basis difference reverses. No definition available.
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax effects attributable to the difference between the tax basis of acquired assets and the basis of acquired assets computed in accordance with generally accepted accounting principles. The difference in basis is attributable to different capitalization of costs or amortization methodologies, which will increase future taxable income when such basis difference is realized. No definition available.
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- Details
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| X | ||||||||||
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to loan acquistions under enacted tax laws. No definition available.
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to bank owned life insurance income that is exempt from income taxes under enacted tax laws. No definition available.
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| X | ||||||||||
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the undistributed foreign earnings reinvested and the repatriation of undistributed previously reported foreign earnings under enacted tax laws. No definition available.
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The component of total income tax expense for the period comprised of the increase (decrease) during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The component of total income tax expense for the period comprised of the increase (decrease) in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from capital losses in excess of statutory limitations in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the tax effects as of the balance sheet date of the amounts of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws ( before the valuation allowance, if any, to reduce such sum amount to net realizable value). Includes any tax benefit realized in deferred tax assets for significant impacts of tax planning strategies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of estimated future tax deductions arising from other temporary differences not otherwise specified in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from tax carryforwards not otherwise specified in the taxonomy and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow utilization. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from unused alternative minimum tax credit carryforwards; a tax credit carryforward is the amount by which tax credits available for utilization exceeded statutory limits on inclusion in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of future tax deductions arising from unused general business tax credit carryforwards. The general business tax credits are the sum of numerous tax credits which include, but are not limited to, investment tax , alcohol fuels, low income housing, alternative fuels, alternative motor vehicles, hurricane relief, disabled access, renewable resources electricity production, employer social security, orphan drug, new markets, employer provided child care facilities and services, biodiesel fuels, low sulfur diesel fuel production, distilled spirits, and the advanced nuclear power facilities credit. A tax credit carryforward is the amount by which tax credits available for utilization exceeded statutory limits on inclusion in historical filings. They can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee benefit costs not otherwise specified in the taxonomy, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from currently nondeductible expenses in accrued liabilities, which can only be deducted for tax purposes when such items are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from the provision for loan losses, which can only be deducted for tax purposes when actual loan losses are known, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cumulative amount of all deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A taxable temporary difference is a difference between the tax basis and the carrying amount of an asset or liability in the financial statements prepared in accordance with generally accepted accounting principles that will result in taxable amounts in one or more future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to differences between the methods used to account for financing arrangements for tax purposes and under generally accepted accounting principles which will increase future taxable income when such differences reverse. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to differences between the methods used to account for leasing arrangements for tax purposes and under generally accepted accounting principles which will increase future taxable income when such differences reverse. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis and the basis of capitalized servicing rights in accordance with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cumulative amount of the estimated future tax effects attributable to other temporary differences not otherwise specified in this taxonomy that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GAAP but not for tax purposes, which will reverse in future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of capital assets and the basis of capital assets computed in accordance with generally accepted accounting principles. The difference in basis, attributable to different capitalization of costs, depreciation, or amortization methodologies, will increase future taxable income when such basis difference is realized. Capital assets include but are not limited to assets such as land, real estate, leasehold improvements, machinery and equipment and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount as of the balance sheet date of the estimated future tax effects arising from unrealized gains on investments in debt and equity securities categorized as trading which will increase future taxable income when such gain is realized. This item excludes deferred tax liabilities generated due to unrealized holding gains on investments in debt and equity securities categorized as available for sale which unrealized holding gains are included in the item Deferred Tax Liabilities, Other Comprehensive Income; such unrealized holding gains increase the carrying value of the asset recorded for financial reporting purposes, but not for tax purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the deduction for dividends paid or received under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the disposition of assets in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible impairment losses under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to all other items not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the current period and the expected income tax expense or benefit computed attributable to revisions of previously reported income tax expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to state and local income tax expense or benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to investment tax credits generated or utilized under enacted tax laws during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to income that is exempt from income taxes under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
State the expiration dates of the tax credit carryforward. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
State the expiration dates of the tax credit carryforward. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents the amount of interest expense accrued as of the date of the statement of financial position for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of the change in the period in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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