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Derivatives - Gains (Losses) Included in the Consolidated Statements of Income Related to Derivative Financial Instruments (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Derivatives, Fair Value [Line Items] |  |
Net tax expenses (benefits) recognized on net change in unrealized gain (loss) on hedging activities | $ 273 | $ 112
Amount of gain recognized in other comprehensive (loss) income, net of tax expense of $273 and $112 | 774 | 316
Not designated as hedging | Mortgage Banking Income |  |
Derivatives, Fair Value [Line Items] |  |
Gains (losses) on derivative financial instruments | 15,958 | 5,484
Not designated as hedging | Interest rate-lock commitments | Mortgage Banking Income |  |
Derivatives, Fair Value [Line Items] |  |
Gains (losses) on derivative financial instruments | (5,446) | (21,442)
Not designated as hedging | Forward commitments | Mortgage Banking Income |  |
Derivatives, Fair Value [Line Items] |  |
Gains (losses) on derivative financial instruments | 37,903 | 43,258
Not designated as hedging | Futures contracts | Mortgage Banking Income |  |
Derivatives, Fair Value [Line Items] |  |
Gains (losses) on derivative financial instruments | (16,535) | (16,332)
Not designated as hedging | Option contracts | Mortgage Banking Income |  |
Derivatives, Fair Value [Line Items] |  |
Gains (losses) on derivative financial instruments | 36 | 0
Designated as hedging |  |
Derivatives, Fair Value [Line Items] |  |
Amount of gain recognized in other comprehensive (loss) income, net of tax expense of $273 and $112 | $ 774 | $ 316

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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- Definition Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 + Details
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- Definition Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580 + Details
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