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Fair Value Measurement and Fair Value of Financial Instruments (Fair Value Adjustments of Assets Measured on a Nonrecurring Basis) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Loans held-for-sale |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | $ 61 | $ 5,600 | $ 3,000
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (22,624) | (26,212) | (9,029)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Commercial Lending | C&I |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (19,703) | (27,106) | (5,612)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Commercial Lending | CRE |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (272) | 1,084 | (2,629)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Commercial Lending | Residential loan | Multifamily |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | 0 | 0 | (115)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Commercial Lending | Construction and land |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (147) | 0 | (118)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Consumer Lending | Residential loan | Single-family |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (11) | (224) | (496)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Consumer Lending | HELOCs |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | 0 | 34 | (59)
Fair Value, Measurements, Nonrecurring | Non-PCI Impaired Loans | Consumer Lending | Other consumer |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (2,491) | 0 | 0
Fair Value, Measurements, Nonrecurring | OREO |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | (1) | (23) | (233)
Fair Value, Measurements, Nonrecurring | Loans held-for-sale |  |  |
Fair Value, Assets Measured on a Nonrecurring Basis |  |  |
Fair value adjustment of assets | $ 0 | $ (5,565) | $ (1,991)

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