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Derivative Instruments and Hedging Activities (Effect of Cash Flow Hedges on Consolidated Statements of Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Derivative [Line Items] |  |  |  |  |
Total amounts presented in the consolidated statements of income in interest income on loans | $ 8,509 | $ 0 | $ 13,595 | $ 0 |
Investment securities available for sale, at fair value | 7,566,525 |  | 7,566,525 |  | $ 6,778,670
Fair Value, Measurements, Recurring Basis | U.S. Government agency securities |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Investment securities available for sale, at fair value | 156,614 |  | 156,614 |  | 36,541
Level 1 |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Investment securities available for sale, at fair value | 20,254 |  | 20,254 |  | 19,855
Level 1 | Fair Value, Measurements, Recurring Basis | U.S. Government agency securities |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Investment securities available for sale, at fair value | 0 |  | 0 |  | $ 0
Interest rate contracts | Cash Flow Hedges |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Realized gains (losses) reclassified from AOCI, pre-tax, to interest income on loans | 1,031 | 0 | 1,421 |  |
Pre-tax income recognized on cash flow hedges | $ 1,031 | $ 0 | $ 1,421 | $ 0 |

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- Definition Realized gains (losses) reclassified from AOCI, pre-tax, to interest income on loans + References No definition available. + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details
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- Definition Aggregate gain on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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- Definition The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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