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Derivative Instruments and Hedging Activities - Interest Rate Swaps Included in Interest Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Derivative [Line Items] |  |  |
Interest income-investment securities | $ 67,472 | $ 47,482 | $ 29,968
Interest expense-investment securities | $ 90,821 | $ 44,050 | 25,344
Designated as Hedging Instrument | Interest rate swaps |  |  |
Derivative [Line Items] |  |  |
Interest income-investment securities |  |  | 267
Interest expense-investment securities |  |  | $ 0

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of operating dividend and interest income, including amortization and accretion of premiums and discounts, on securities. + References No definition available. + Details
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- Definition Amount of interest expense classified as other. + References No definition available. + Details
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- Details
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- Details
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