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Fair Value Measurement and Fair Value of Financial Instruments (Quantitative Information for Significant Unobservable Inputs) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Quantitative information |  |
Derivative assets - Fair value | $ 764,430 | $ 330,316
Fair Value, Measurements, Recurring |  |
Quantitative information |  |
Derivative assets - Fair value | 764,430 | 330,316
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring |  |
Quantitative information |  |
Derivative assets - Fair value | 316 | 421
Loans | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) | 109,404 |
Loans | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) | 109,404 |
Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) | 29,949 |
Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) | 5,658 |
Loans | Significant Unobservable Inputs (Level 3) | Fair value of property, selling cost | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) | 52,345 |
Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, contract value | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) | 21,452 |
Non-PCI Loans | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) |  | 49,679
Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) |  | 49,679
Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) |  | 27,841
Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) |  | 1,014
Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, contract value | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans (current period)/Non-PCI impaired loans (prior period) |  | 20,824
OREO | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure |  | 125
OREO | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure |  | 125
OREO | Significant Unobservable Inputs (Level 3) | Fair value of property, selling cost | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure |  | 125
Other nonperforming assets | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure |  | 1,167
Other nonperforming assets | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure |  | 1,167
Other nonperforming assets | Significant Unobservable Inputs (Level 3) | Fair value of collateral, contract value | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure |  | 1,167
Investments in tax credit and other investments, net | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure | 6,216 | 3,076
Investments in tax credit and other investments, net | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure | 6,216 | 3,076
Investments in tax credit and other investments, net | Significant Unobservable Inputs (Level 3) | Individual analysis of each investment, expected future tax benefits and distributions | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Assets, fair value disclosure | 6,216 | 3,076
Equity contracts | Fair Value, Measurements, Recurring |  |
Quantitative information |  |
Derivative assets - Fair value | 9,173 | 1,414
Equity contracts | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring |  |
Quantitative information |  |
Derivative assets - Fair value | $ 316 | $ 421
Equity volatility | Equity contracts | Significant Unobservable Inputs (Level 3) | Black-Scholes option pricing model | Fair Value, Measurements, Recurring | Weighted Average |  |
Quantitative information |  |
Measurement input | 63.00% | 42.00%
Equity volatility | Equity contracts | Significant Unobservable Inputs (Level 3) | Black-Scholes option pricing model | Fair Value, Measurements, Recurring | Minimum |  |
Quantitative information |  |
Measurement input | 58.00% | 39.00%
Equity volatility | Equity contracts | Significant Unobservable Inputs (Level 3) | Black-Scholes option pricing model | Fair Value, Measurements, Recurring | Maximum |  |
Quantitative information |  |
Measurement input | 70.00% | 44.00%
Liquidity discount | Equity contracts | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring |  |
Quantitative information |  |
Measurement input | 47.00% | 47.00%
Liquidity discount | Equity contracts | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Weighted Average |  |
Quantitative information |  |
Measurement input | 47.00% | 47.00%
Discount | Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring | Weighted Average |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 10.00% |
Discount | Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring | Minimum |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 4.00% |
Discount | Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring | Maximum |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 15.00% |
Discount | Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring | Weighted Average |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 19.00% |
Discount | Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring | Minimum |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 10.00% |
Discount | Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring | Maximum |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 63.00% |
Discount | Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring | Weighted Average |  |
Quantitative information |  |
Non-PCI impaired loans, measurement input |  | 14.00%
Discount | Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring | Minimum |  |
Quantitative information |  |
Non-PCI impaired loans, measurement input |  | 4.00%
Discount | Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Discounted cash flows | Fair Value, Measurements, Nonrecurring | Maximum |  |
Quantitative information |  |
Non-PCI impaired loans, measurement input |  | 15.00%
Discount | Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring | Weighted Average |  |
Quantitative information |  |
Non-PCI impaired loans, measurement input |  | 19.00%
Discount | Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring | Minimum |  |
Quantitative information |  |
Non-PCI impaired loans, measurement input |  | 8.00%
Discount | Non-PCI Loans | Significant Unobservable Inputs (Level 3) | Fair value of collateral, discount | Fair Value, Measurements, Nonrecurring | Maximum |  |
Quantitative information |  |
Non-PCI impaired loans, measurement input |  | 20.00%
Selling cost | Loans | Significant Unobservable Inputs (Level 3) | Fair value of property, selling cost | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 8.00% |
Selling cost | Loans | Significant Unobservable Inputs (Level 3) | Fair value of property, selling cost | Fair Value, Measurements, Nonrecurring | Weighted Average |  |
Quantitative information |  |
Individually evaluated loans, measurement input | 8.00% |
Selling cost | OREO | Significant Unobservable Inputs (Level 3) | Fair value of property, selling cost | Fair Value, Measurements, Nonrecurring |  |
Quantitative information |  |
OREO, measurement input |  | 0.08
Selling cost | OREO | Significant Unobservable Inputs (Level 3) | Fair value of property, selling cost | Fair Value, Measurements, Nonrecurring | Weighted Average |  |
Quantitative information |  |
OREO, measurement input |  | 0.08
Derivatives not designated as hedging instruments |  |
Quantitative information |  |
Derivative assets - Fair value | $ 764,185 | $ 330,316
Derivatives not designated as hedging instruments | Equity contracts |  |
Quantitative information |  |
Derivative assets - Fair value | $ 9,173 | $ 1,414

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