$SNV
SYNOVUS FINANCIAL CORP Stock $snv

$snv Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000001834922000076 Filed on February 25, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue		$883.1M
YoY Change		5.17%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$33.90M	$50.50M	$28.70M
YoY Change	18.12%	-2.13%	-3288.89%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$120.4M
YoY Change		-58.73%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$269.4M	$989.4M	$187.1M
YoY Change	43.99%	104.13%	-9.45%
Income Tax	$69.00M	$228.9M	$36.70M
% Of Pretax Income	25.61%	23.14%	19.62%
Net Earnings	$200.4M	$760.5M	$150.4M
YoY Change	33.24%	103.5%	-0.85%
Net Earnings / Revenue		86.11%
Basic Earnings Per Share		$4.95
Diluted Earnings Per Share	$1.365M	$4.90	$1.011M
COMMON SHARES
Basic Shares Outstanding	145.5M shares	147.0M shares	147.8M shares
Diluted Shares Outstanding		148.5M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$3.010B		$4.253B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$407.0M	$819.0M	$464.0M
YoY Change	-12.28%	-2.96%	-46.61%
Goodwill	$452.4M		$452.4M
YoY Change	0.0%		-9.02%
Intangibles
YoY Change
Long-Term Investments		$12.00M
YoY Change		1100.0%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$57.32B	$57.32B	$54.39B
YoY Change	5.37%	5.37%	12.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$200.0K	$264.0M	$235.6M
YoY Change	-99.92%	11.86%	-87.72%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$264.0M	$264.0M	$236.0M
YoY Change	11.86%	-52.77%	-38.54%
LONG-TERM LIABILITIES
Long-Term Debt	$1.204B	$1.204B	$1.202B
YoY Change	0.17%	0.08%	-44.3%
Other Long-Term Liabilities	$1.125B	$1.125B	$1.103B
YoY Change	1.99%	107.18%	179.95%
Total Long-Term Liabilities	$2.329B	$2.329B	$2.305B
YoY Change	1.04%	33.39%	-9.68%
TOTAL LIABILITIES
Total Short-Term Liabilities	$264.0M	$264.0M	$236.0M
Total Long-Term Liabilities	$2.329B	$2.329B	$2.305B
Total Liabilities	$52.02B	$52.02B	$49.23B
YoY Change	5.66%	5.66%	13.8%
SHAREHOLDERS EQUITY
Retained Earnings	$1.710B		$1.178B
YoY Change	45.16%		10.27%
Common Stock	$169.4M		$168.1M
YoY Change	0.74%		0.8%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$931.5M		$731.8M
YoY Change	27.29%		2.27%
Treasury Stock Shares	24.37M shares		20.09M shares
Shareholders Equity	$5.297B	$5.297B	$5.161B
YoY Change
Total Liabilities & Shareholders Equity	$57.32B	$57.32B	$54.39B
YoY Change	5.37%	5.37%	12.84%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$200.4M	$760.5M	$150.4M
YoY Change	33.24%	103.5%	-0.85%
Depreciation, Depletion And Amortization	$33.90M	$50.50M	$28.70M
YoY Change	18.12%	-2.13%	-3288.89%
Cash From Operating Activities	-$49.30M	$794.0M	$225.4M
YoY Change	-121.87%	4561.91%	-12.3%
INVESTING ACTIVITIES
Capital Expenditures	-$6.000M	$25.95M	-$7.300M
YoY Change	-17.81%	-13.78%	-65.24%
Acquisitions
YoY Change
Other Investing Activities	-$1.277B	-$25.37M	$877.9M
YoY Change	-245.47%	-44.65%	-241.92%
Cash From Investing Activities	-$1.283B	-$4.384B	$870.5M
YoY Change	-247.4%	86.32%	-236.1%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$199.9M
YoY Change		1130.65%
Debt Paid & Issued, Net		$0.00
YoY Change		-100.0%
Cash From Financing Activities	1.655B	$2.347B	1.172B
YoY Change	41.24%	-56.55%	202.66%
NET CHANGE
Cash From Operating Activities	-49.30M	$794.0M	225.4M
Cash From Investing Activities	-1.283B	-$4.384B	870.5M
Cash From Financing Activities	1.655B	$2.347B	1.172B
Net Change In Cash	322.4M	-$1.243B	2.267B
YoY Change	-85.78%	-140.54%	50288.89%
FREE CASH FLOW
Cash From Operating Activities	-$49.30M	$794.0M	$225.4M
Capital Expenditures	-$6.000M	$25.95M	-$7.300M
Free Cash Flow	-$43.30M	$768.1M	$232.7M
YoY Change	-118.61%	-5976.53%	-16.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000018349
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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CY2021	dei	Document Type DocumentType	10-K
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CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Entity File Number EntityFileNumber	1-10312
CY2021	dei	Entity Registrant Name EntityRegistrantName	SYNOVUS FINANCIAL CORP
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	GA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	58-1134883
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1111 Bay Avenue
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 500,
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Columbus,
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CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
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CY2020	us-gaap	Noninterest Income Other NoninterestIncomeOther	53670000	USD
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	45360000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	450066000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	506513000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	355900000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	649426000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	618214000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	570036000	USD
CY2021	us-gaap	Occupancy Net OccupancyNet	169222000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	169658000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	161906000	USD
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	86688000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	87992000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	79225000	USD
CY2021	us-gaap	Professional Fees ProfessionalFees	32785000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	56899000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	35300000	USD
CY2021	syn	Fdic Insurance And Other Regulatory Fees FDICInsuranceAndOtherRegulatoryFees	22355000	USD
CY2020	syn	Fdic Insurance And Other Regulatory Fees FDICInsuranceAndOtherRegulatoryFees	25210000	USD
CY2019	syn	Fdic Insurance And Other Regulatory Fees FDICInsuranceAndOtherRegulatoryFees	31696000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	44877000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	7223000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	26991000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	1230000	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	56580000	USD
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	132205000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	149733000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	162995000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	1099904000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	1179574000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	1098968000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	989360000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	484665000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	765015000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	228893000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	110970000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	201235000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	760467000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	373695000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	563780000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	33163000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	33163000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	22881000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	727304000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	340532000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	540899000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.95
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.31
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.50
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.90
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.30
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.47
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147041000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147415000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154331000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148495000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148210000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156058000	shares
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	989360000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	228893000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	760467000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	484665000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	110970000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	373695000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	765015000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	201235000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	563780000	USD
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CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-60304000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-174246000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	108626000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	28135000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	80491000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	217501000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	56331000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	161170000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-799000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-202000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-597000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	78931000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	20443000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	58488000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-7659000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1984000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-5675000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-233751000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-60102000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-173649000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	29695000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	7692000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	22003000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	225160000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	58315000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	166845000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-77948000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-20243000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-57705000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	99193000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	25691000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	73502000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-8570000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-2220000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-6350000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	12862000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	3260000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	9602000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	2765000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	716000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	2049000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-90810000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-23503000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-67307000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	96428000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	24975000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	71453000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-8570000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-2220000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-6350000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-510000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-132000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-378000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	-618000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-156000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-462000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	-70000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-14000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-56000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	618000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	156000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	462000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	580000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	146000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	434000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-324561000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-83605000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-240956000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	125505000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	32511000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	92994000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	216010000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	55949000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	160061000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	519511000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	466689000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	723841000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3133602000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	563780000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	160061000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.20
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	183091000	USD
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	22881000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	725398000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	11846000	USD
CY2019	syn	Restricted Share Unit Activity RestrictedShareUnitActivity	-8855000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	16176000	USD
CY2019	syn	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	0	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	24487000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	4941690000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	373695000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	92994000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.32
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	194658000	USD
CY2020	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	33163000	USD
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	16246000	USD
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	8695000	USD
CY2020	syn	Restricted Share Unit Activity RestrictedShareUnitActivity	-7575000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	12982000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	18641000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	5161334000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	760467000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-240956000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.32
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	193695000	USD
CY2021	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	33163000	USD
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	199932000	USD
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	5080000	USD
CY2021	syn	Restricted Share Unit Activity RestrictedShareUnitActivity	-7544000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	19110000	USD
CY2021	syn	Stock Issued During Period Value Warrants Exercised StockIssuedDuringPeriodValueWarrantsExercised	0	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26099000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	5296800000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	760467000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	373695000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	563780000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-106251000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	355022000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	87720000	USD
CY2021	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	157987000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	106107000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8079000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	45000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-86192000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	86633000	USD
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	3698368000	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	3466170000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	872105000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	3749502000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	2936398000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	816223000	USD
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	42513000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	67115000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	21448000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	78728000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	411632000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	127636000	USD
CY2021	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-21674000	USD
CY2020	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	281866000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	43066000	USD
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	-799000	USD
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	78931000	USD
CY2019	us-gaap	Gain Loss On Investments GainLossOnInvestments	-7659000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	27795000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	18641000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	24487000	USD
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	0	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	55343000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	4592000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	794016000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	17032000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	621050000	USD
CY2021	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2020	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	201100000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	3051158000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2291536000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1102651000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	565400000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2649686000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2923787000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	6877712000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	6036179000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	4300021000	USD
CY2021	syn	Proceeds From Sale Of Loans ProceedsFromSaleOfLoans	111168000	USD
CY2020	syn	Proceeds From Sale Of Loans ProceedsFromSaleOfLoans	1426954000	USD
CY2019	syn	Proceeds From Sale Of Loans ProceedsFromSaleOfLoans	74123000	USD
CY2021	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	1624182000	USD
CY2020	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	126152000	USD
CY2019	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	667954000	USD
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-373964000	USD
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	2461302000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1361693000	USD
CY2021	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock	1220000	USD
CY2020	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock	658000	USD
CY2019	us-gaap	Payments For Proceeds From Federal Reserve Bank Stock PaymentsForProceedsFromFederalReserveBankStock	55335000	USD
CY2021	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	1200000	USD
CY2020	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	-129710000	USD
CY2019	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	45856000	USD
CY2021	syn	Purchases Of Bank Owned Life Insurance Policies Net Of Settlements PurchasesOfBankOwnedLifeInsurancePoliciesNetOfSettlements	19045000	USD
CY2020	syn	Purchases Of Bank Owned Life Insurance Policies Net Of Settlements PurchasesOfBankOwnedLifeInsurancePoliciesNetOfSettlements	-242300000	USD
CY2019	syn	Purchases Of Bank Owned Life Insurance Policies Net Of Settlements PurchasesOfBankOwnedLifeInsurancePoliciesNetOfSettlements	16637000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	25954000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30102000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	61208000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-25367000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-45834000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-19907000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4384166000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2352973000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2153862000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2735705000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	8284519000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	797612000	USD
CY2021	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	36211000	USD
CY2020	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	62232000	USD
CY2019	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-101142000	USD
CY2021	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	0	USD
CY2020	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	1745843000	USD
CY2019	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-1103560000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2408939000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	157226000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1445492000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	497045000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	194677000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	189967000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	167923000	USD
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	33163000	USD
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	33163000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	17741000	USD
CY2021	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	342005000	USD
CY2021	syn	Proceeds From Stock Options And Warrants Exercised Net Of Taxes Paid ProceedsFromStockOptionsAndWarrantsExercisedNetOfTaxesPaid	11566000	USD
CY2020	syn	Proceeds From Stock Options And Warrants Exercised Net Of Taxes Paid ProceedsFromStockOptionsAndWarrantsExercisedNetOfTaxesPaid	5407000	USD
CY2019	syn	Proceeds From Stock Options And Warrants Exercised Net Of Taxes Paid ProceedsFromStockOptionsAndWarrantsExercisedNetOfTaxesPaid	7321000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	199932000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	16246000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	725398000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-8624000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1552000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1947000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2347086000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	5401940000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1576166000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1243064000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	3065999000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	43354000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4252917000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1186918000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1143564000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3009853000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4252917000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1186918000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	204214000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	110828000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	101781000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	132923000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	319282000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	464712000	USD
CY2021	syn	Stock Issued During Period Value Treasury Stock Reissued Equity Awards Warrants Convertedin Acquisition StockIssuedDuringPeriodValueTreasuryStockReissuedEquityAwardsWarrantsConvertedinAcquisition	0	USD
CY2020	syn	Stock Issued During Period Value Treasury Stock Reissued Equity Awards Warrants Convertedin Acquisition StockIssuedDuringPeriodValueTreasuryStockReissuedEquityAwardsWarrantsConvertedinAcquisition	0	USD
CY2019	syn	Stock Issued During Period Value Treasury Stock Reissued Equity Awards Warrants Convertedin Acquisition StockIssuedDuringPeriodValueTreasuryStockReissuedEquityAwardsWarrantsConvertedinAcquisition	1625688000	USD
CY2021	syn	Loans Foreclosed And Transferred To Other Real Estate LoansForeclosedAndTransferredToOtherRealEstate	12408000	USD
CY2020	syn	Loans Foreclosed And Transferred To Other Real Estate LoansForeclosedAndTransferredToOtherRealEstate	2163000	USD
CY2019	syn	Loans Foreclosed And Transferred To Other Real Estate LoansForeclosedAndTransferredToOtherRealEstate	19423000	USD
CY2021	syn	Loans Transferred To From Other Loans Held For Sale At Fair Value LoansTransferredToFromOtherLoansHeldForSaleAtFairValue	-859000	USD
CY2020	syn	Loans Transferred To From Other Loans Held For Sale At Fair Value LoansTransferredToFromOtherLoansHeldForSaleAtFairValue	49821000	USD
CY2019	syn	Loans Transferred To From Other Loans Held For Sale At Fair Value LoansTransferredToFromOtherLoansHeldForSaleAtFairValue	72707000	USD
CY2021	us-gaap	Comparability Of Prior Year Financial Data ComparabilityOfPriorYearFinancialData	During the third quarter of 2021, the Company made corrections to proceeds and purchases of investment securities available for sale by adjusting for the impact of timing differences associated with unsettled trades that crossed certain reporting periods. The Company concluded that the corrections were not material to any prior or current periods from a combined qualitative and quantitative perspective.
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2649686000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	6036179000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2352973000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;margin-top:6pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In preparing the consolidated financial statements in accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the respective consolidated balance sheets and the reported amounts of revenue and expense for the periods presented. Actual results could differ significantly from those estimates.</span></div><div style="margin-bottom:6pt;margin-top:6pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Material estimates that are particularly susceptible to significant change relate to the determination of the ACL, estimates of fair value, income taxes, and contingent liabilities.</span></div>
CY2021Q4	syn	Short Term Investments Restricted Derivatives ShortTermInvestmentsRestrictedDerivatives	65100000	USD
CY2020Q4	syn	Short Term Investments Restricted Derivatives ShortTermInvestmentsRestrictedDerivatives	158700000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	281402000	USD
CY2020Q1	syn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	1375000	USD
CY2020Q1	syn	All Financing Receivable Allowance For Credit Loss AllFinancingReceivableAllowanceForCreditLoss	282777000	USD
CY2020Q1	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	36881048000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1068327000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2021Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	143700000	USD
CY2020Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	142500000	USD
CY2021Q4	syn	Federal Reserve Bank Stock Required Percentof Capitalor Surplus FederalReserveBankStockRequiredPercentofCapitalorSurplus	0.06
CY2021Q4	syn	Federal Reserve Bank Stock Required Percentof Deposits FederalReserveBankStockRequiredPercentofDeposits	0.006
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	16200000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	15000000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	10991506000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	66427000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	139604000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	10918329000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	7801864000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	177243000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	16669000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	7962438000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	6596065000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	96227000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1523383000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	43377000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	8119448000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	139604000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1379662000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	16669000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1379662000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	16669000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	143	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	37	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	545074000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	182307000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	452953000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	9811172000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	10991506000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	545306000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	184013000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	452296000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	9736714000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	10918329000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1191000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	85375000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	10370000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	1990000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	6444000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	18029000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-799000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	78931000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-7659000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	100518000	USD
CY2021Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	30524000	USD
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	39311958000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	127720000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	23359000	USD
CY2020Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	38252984000	USD
CY2021	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	11100000	USD
CY2020	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	12600000	USD
CY2021	us-gaap	Loans And Leases Receivable Impaired Interest Income Recognized Change In Present Value Attributable To Passage Of Time LoansAndLeasesReceivableImpairedInterestIncomeRecognizedChangeInPresentValueAttributableToPassageOfTime	1800000	USD
CY2020	us-gaap	Loans And Leases Receivable Impaired Interest Income Recognized Change In Present Value Attributable To Passage Of Time LoansAndLeasesReceivableImpairedInterestIncomeRecognizedChangeInPresentValueAttributableToPassageOfTime	3900000	USD
CY2021Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	14190000000	USD
CY2020Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	15050000000.00	USD
CY2021Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	9422021000	USD
CY2021Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	6553714000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	4897449000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	3086000000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	2559500000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	4731830000	USD
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	39311958000	USD
CY2020Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	8709446000	USD
CY2020Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	6259069000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	4981643000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	3875295000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	2594349000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	4699763000	USD
CY2020Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	38252984000	USD
CY2020	us-gaap	Financing Receivable Change In Method Credit Loss Expense Reversal FinancingReceivableChangeInMethodCreditLossExpenseReversal	18300000	USD
CY2020	us-gaap	Financing Receivable Transfer To Held For Sale Allowance For Credit Loss Expense Reversal FinancingReceivableTransferToHeldForSaleAllowanceForCreditLossExpenseReversal	1430000000	USD
CY2021	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	105232000	USD
CY2021	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	27444000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-100351000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	427597000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	281402000	USD
CY2020	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	119262000	USD
CY2020	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	24550000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	336052000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	605736000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	250555000	USD
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	79135000	USD
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	21523000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	87720000	USD
CY2019	syn	Transferofunfundedcommitmentreserve Transferofunfundedcommitmentreserve	739000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	281402000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	427600000	USD
CY2021Q4	syn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	41900000	USD
CY2021Q4	syn	All Financing Receivable Allowance For Credit Loss AllFinancingReceivableAllowanceForCreditLoss	469500000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	184000000	USD
CY2020Q4	syn	All Financing Receivable Allowance For Credit Loss AllFinancingReceivableAllowanceForCreditLoss	653500000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	605700000	USD
CY2021Q4	syn	Acl To Loans Ratio ACLToLoansRatio	0.0119
CY2021	syn	Increase Decrease In Acl To Loans Ratio IncreaseDecreaseInACLToLoansRatio	-0.0052
CY2021	syn	Financing Receivable Allowance For Credit Loss Period Increase Decrease From Increase In Size Of Loan Profile FinancingReceivableAllowanceForCreditLossPeriodIncreaseDecreaseFromIncreaseInSizeOfLoanProfile	1620000000	USD
CY2021	us-gaap	Financing Receivable Significant Purchases FinancingReceivableSignificantPurchases	38600000	USD
CY2021	syn	Financing Receivable Allowance For Credit Loss Reasonable And Supportable Forecast Period FinancingReceivableAllowanceForCreditLossReasonableAndSupportableForecastPeriod	P2Y
CY2021	syn	Financing Receivable Allowance For Credit Loss Straight Line Basis Historical Period FinancingReceivableAllowanceForCreditLossStraightLineBasisHistoricalPeriod	P1Y
CY2021Q4	syn	Financing Receivable Allowance For Credit Loss Measurement Input Downside Bias FinancingReceivableAllowanceForCreditLossMeasurementInputDownsideBias	0.43
CY2021Q4	syn	Financing Receivable Allowance For Credit Loss Measurement Input Downside Bias FinancingReceivableAllowanceForCreditLossMeasurementInputDownsideBias	0.43
CY2021Q4	syn	Financing Receivable Allowance For Credit Loss Measurement Input Estimated Unemployment Rate FinancingReceivableAllowanceForCreditLossMeasurementInputEstimatedUnemploymentRate	0.037
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	382	contract
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	48932000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	352	contract
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	76615000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	380	contract
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	49859000	USD
CY2021	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2020	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2019	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	981468000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1069349000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	574227000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	605390000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	407241000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	463959000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	2200000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	3400000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	50500000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	51600000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49200000	USD
CY2021	syn	Premises And Equipment Transferred To Other Assets Held For Sale PremisesAndEquipmentTransferredToOtherAssetsHeldForSale	33400000	USD
CY2020	syn	Premises And Equipment Transferred To Other Assets Held For Sale PremisesAndEquipmentTransferredToOtherAssetsHeldForSale	7000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	497267000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	44877000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	452390000	USD
CY2021	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	USD
CY2021Q4	us-gaap	Goodwill Goodwill	452390000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9500000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10600000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11600000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	69900000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34304000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	35596000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	69900000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	24788000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	45112000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	8472000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	7429000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	6366000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5266000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	4195000	USD
CY2021Q4	syn	Tax Credit Partnerships TaxCreditPartnerships	426137000	USD
CY2020Q4	syn	Tax Credit Partnerships TaxCreditPartnerships	262855000	USD
CY2021Q4	syn	Leases Rightof Use Asset LeasesRightofUseAsset	411472000	USD
CY2020Q4	syn	Leases Rightof Use Asset LeasesRightofUseAsset	380380000	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	191708000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	401295000	USD
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	169051000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	130848000	USD
CY2021Q4	syn	Federal Reserve Bank Stock And Federal Home Loan Bank Stock FederalReserveBankStockAndFederalHomeLoanBankStock	159941000	USD
CY2020Q4	syn	Federal Reserve Bank Stock And Federal Home Loan Bank Stock FederalReserveBankStockAndFederalHomeLoanBankStock	157520000	USD
CY2021Q4	us-gaap	Interest Receivable InterestReceivable	145659000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	177865000	USD
CY2021Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	81325000	USD
CY2020Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	88286000	USD
CY2021Q4	syn	Mutual Fundsand Mutual Funds Held In Rabbi Trusts MutualFundsandMutualFundsHeldInRabbiTrusts	43657000	USD
CY2020Q4	syn	Mutual Fundsand Mutual Funds Held In Rabbi Trusts MutualFundsandMutualFundsHeldInRabbiTrusts	37650000	USD
CY2021Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	42874000	USD
CY2020Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	45088000	USD
CY2021Q4	syn	Merchant Payment Services Receivables MerchantPaymentServicesReceivables	15320000	USD
CY2020Q4	syn	Merchant Payment Services Receivables MerchantPaymentServicesReceivables	15575000	USD
CY2021Q4	syn	Private Equity Investments PrivateEquityInvestments	12185000	USD
CY2020Q4	syn	Private Equity Investments PrivateEquityInvestments	1021000	USD
CY2021Q4	us-gaap	Other Real Estate OtherRealEstate	11818000	USD
CY2020Q4	us-gaap	Other Real Estate OtherRealEstate	1819000	USD
CY2021Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	8391000	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	10880000	USD
CY2021Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	70660000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	49517000	USD
CY2021Q4	us-gaap	Other Assets OtherAssets	1790198000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	1760599000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	9321611000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	8838710000	USD
CY2021Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	16364338000	USD
CY2020Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	15277829000	USD
CY2021Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1420647000	USD
CY2020Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1168672000	USD
CY2021Q4	syn	Time Deposits Excluding Brokered Deposits TimeDepositsExcludingBrokeredDeposits	3093027000	USD
CY2020Q4	syn	Time Deposits Excluding Brokered Deposits TimeDepositsExcludingBrokeredDeposits	4358100000	USD
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	2835000000	USD
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	3570406000	USD
CY2021Q4	syn	Interest Bearing Deposit Liabilities And Time Deposits InterestBearingDepositLiabilitiesAndTimeDeposits	33034623000	USD
CY2020Q4	syn	Interest Bearing Deposit Liabilities And Time Deposits InterestBearingDepositLiabilitiesAndTimeDeposits	33213717000	USD
CY2021Q4	syn	Time Deposits250000or More TimeDeposits250000orMore	1330000000	USD
CY2020Q4	syn	Time Deposits250000or More TimeDeposits250000orMore	1800000000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	3025020000	USD
CY2021Q4	syn	Time Deposits Maturing In Year One And Two TimeDepositsMaturingInYearOneAndTwo	789274000	USD
CY2021Q4	syn	Time Deposits Maturing In Years Two And Three TimeDepositsMaturingInYearsTwoAndThree	171042000	USD
CY2021Q4	syn	Time Deposits Maturing In Years Three And Four TimeDepositsMaturingInYearsThreeAndFour	79903000	USD
CY2021Q4	syn	Time Deposits Maturing In Years Four And Five TimeDepositsMaturingInYearsFourAndFive	41967000	USD
CY2021Q4	syn	Time Deposits Maturingin After Five Years TimeDepositsMaturinginAfterFiveYears	10269000	USD
CY2021Q4	us-gaap	Time Deposits TimeDeposits	4117475000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	1204229000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	1202494000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	300000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	400000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2021Q4	syn	Capital Conservation Buffer CapitalConservationBuffer	0.025
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	510000000	USD
CY2021Q4	syn	Long Term Debt Before Hedge Related Basis Adjustment LongTermDebtBeforeHedgeRelatedBasisAdjustment	1210000000	USD
CY2019Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	725000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	154442000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-5619000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	160061000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	153993000	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	60999000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	92994000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-231951000	USD
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	9005000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-240956000	USD
CY2021Q4	syn	Common Equity Tier One CommonEquityTierOne	4388618000	USD
CY2020Q4	syn	Common Equity Tier One CommonEquityTierOne	4034865000	USD
CY2021Q4	syn	Common Equity Tier One Requiredfor Capital Adequacy CommonEquityTierOneRequiredforCapitalAdequacy	2079435000	USD
CY2020Q4	syn	Common Equity Tier One Requiredfor Capital Adequacy CommonEquityTierOneRequiredforCapitalAdequacy	1879551000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	4925763000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	4572010000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	2772581000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	2506068000	USD
CY2021Q4	us-gaap	Capital Capital	5827196000	USD
CY2020Q4	us-gaap	Capital Capital	5604230000	USD
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	3696774000	USD
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	3341425000	USD
CY2021Q4	syn	Common Equity Tier Oneto Risk Weighted Assets CommonEquityTierOnetoRiskWeightedAssets	0.0950
CY2020Q4	syn	Common Equity Tier Oneto Risk Weighted Assets CommonEquityTierOnetoRiskWeightedAssets	0.0966
CY2021Q4	syn	Common Equity Tier One Capital Requiredfor Capital Adequacyto Risk Weighted Assets CommonEquityTierOneCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.0450
CY2020Q4	syn	Common Equity Tier One Capital Requiredfor Capital Adequacyto Risk Weighted Assets CommonEquityTierOneCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.0450
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1066
CY2020Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1095
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1261
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1342
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0872
CY2020Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0850
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2021Q4	syn	Capital Conservation Buffer CapitalConservationBuffer	0.025
CY2021	us-gaap	Net Income Loss NetIncomeLoss	760467000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	373695000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	563780000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	33163000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	33163000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	22881000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	727304000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	340532000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	540899000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147041000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147415000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154331000	shares
CY2021	syn	Potentially Dilutive Shares From Assumed Exercise Of Securities Or Other Contracts To Purchase Common Stock PotentiallyDilutiveSharesFromAssumedExerciseOfSecuritiesOrOtherContractsToPurchaseCommonStock	1454000	shares
CY2020	syn	Potentially Dilutive Shares From Assumed Exercise Of Securities Or Other Contracts To Purchase Common Stock PotentiallyDilutiveSharesFromAssumedExerciseOfSecuritiesOrOtherContractsToPurchaseCommonStock	795000	shares
CY2019	syn	Potentially Dilutive Shares From Assumed Exercise Of Securities Or Other Contracts To Purchase Common Stock PotentiallyDilutiveSharesFromAssumedExerciseOfSecuritiesOrOtherContractsToPurchaseCommonStock	1727000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148495000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	148210000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156058000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.95
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.31
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.50
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.90
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.30
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.47
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	21000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	602000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	40000	shares
CY2021	syn	Change In Mortgage Loans Held For Sale Included In Net Income ChangeInMortgageLoansHeldForSaleIncludedInNetIncome	-3942000	USD
CY2020	syn	Change In Mortgage Loans Held For Sale Included In Net Income ChangeInMortgageLoansHeldForSaleIncludedInNetIncome	3400000	USD
CY2019	syn	Change In Mortgage Loans Held For Sale Included In Net Income ChangeInMortgageLoansHeldForSaleIncludedInNetIncome	1675000	USD
CY2021Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	108198000	USD
CY2020Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	216647000	USD
CY2019Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	115173000	USD
CY2021Q4	syn	Fair Value Option Aggregate Unpaid Principal Balance Of Mortgage Loans Held For Sale FairValueOptionAggregateUnpaidPrincipalBalanceOfMortgageLoansHeldForSale	105785000	USD
CY2020Q4	syn	Fair Value Option Aggregate Unpaid Principal Balance Of Mortgage Loans Held For Sale FairValueOptionAggregateUnpaidPrincipalBalanceOfMortgageLoansHeldForSale	210292000	USD
CY2019Q4	syn	Fair Value Option Aggregate Unpaid Principal Balance Of Mortgage Loans Held For Sale FairValueOptionAggregateUnpaidPrincipalBalanceOfMortgageLoansHeldForSale	112218000	USD
CY2021Q4	us-gaap	Fair Value Option Aggregate Differences Long Term Debt Instruments FairValueOptionAggregateDifferencesLongTermDebtInstruments	2413000	USD
CY2020Q4	us-gaap	Fair Value Option Aggregate Differences Long Term Debt Instruments FairValueOptionAggregateDifferencesLongTermDebtInstruments	6355000	USD
CY2019Q4	us-gaap	Fair Value Option Aggregate Differences Long Term Debt Instruments FairValueOptionAggregateDifferencesLongTermDebtInstruments	2955000	USD
CY2021	syn	Amortization Of Terminated Cash Flow Hedges Income Recognized AmortizationOfTerminatedCashFlowHedgesIncomeRecognized	12900000	USD
CY2020	syn	Amortization Of Terminated Cash Flow Hedges Income Recognized AmortizationOfTerminatedCashFlowHedgesIncomeRecognized	2800000	USD
CY2021	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	27000000	USD
CY2021	syn	Cash Flow Hedge Termination Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeTerminationGainLossToBeReclassifiedWithinTwelveMonths	4000000	USD
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	64500000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	155400000	USD
CY2021Q4	syn	Variation Margin Amount Reducing Derivative Liability VariationMarginAmountReducingDerivativeLiability	94600000	USD
CY2020Q4	syn	Variation Margin Amount Reducing Derivative Liability VariationMarginAmountReducingDerivativeLiability	162700000	USD
CY2021	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	31522000	USD
CY2020	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	22215000	USD
CY2019	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	0	USD
CY2021Q4	syn	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	41900000	USD
CY2021Q4	syn	Tax Credits Cra Partnerships And Other Investments Carrying Amount Included In Other Assets TaxCreditsCRAPartnershipsAndOtherInvestmentsCarryingAmountIncludedInOtherAssets	426137000	USD
CY2020Q4	syn	Tax Credits Cra Partnerships And Other Investments Carrying Amount Included In Other Assets TaxCreditsCRAPartnershipsAndOtherInvestmentsCarryingAmountIncludedInOtherAssets	262855000	USD
CY2021Q4	syn	Tax Credits Cra Partnerships And Other Investments Amount Of Future Funding Commitments TaxCreditsCRAPartnershipsAndOtherInvestmentsAmountOfFutureFundingCommitments	250733000	USD
CY2020Q4	syn	Tax Credits Cra Partnerships And Other Investments Amount Of Future Funding Commitments TaxCreditsCRAPartnershipsAndOtherInvestmentsAmountOfFutureFundingCommitments	133946000	USD
CY2021Q4	syn	Tax Credits Cra Partnerships And Other Investments Permanent And Short Term Construction Loans And Letter Of Credit Commitments TaxCreditsCRAPartnershipsAndOtherInvestmentsPermanentAndShortTermConstructionLoansAndLetterOfCreditCommitments	204391000	USD
CY2020Q4	syn	Tax Credits Cra Partnerships And Other Investments Permanent And Short Term Construction Loans And Letter Of Credit Commitments TaxCreditsCRAPartnershipsAndOtherInvestmentsPermanentAndShortTermConstructionLoansAndLetterOfCreditCommitments	82786000	USD
CY2021Q4	syn	Tax Credits Cra Partnerships And Other Investments Funded Portion Of Permanent And Short Term Loans And Letters Of Credit TaxCreditsCRAPartnershipsAndOtherInvestmentsFundedPortionOfPermanentAndShortTermLoansAndLettersOfCredit	104315000	USD
CY2020Q4	syn	Tax Credits Cra Partnerships And Other Investments Funded Portion Of Permanent And Short Term Loans And Letters Of Credit TaxCreditsCRAPartnershipsAndOtherInvestmentsFundedPortionOfPermanentAndShortTermLoansAndLettersOfCredit	9528000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1	P3Y
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4800000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6300000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	30300000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M13D
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2401000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.47
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3037000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.74
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	640000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.93
CY2021	syn	Sharebased Compensation Arrangementby Sharebased Payment Award Options Assumedin Acquisition SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAssumedinAcquisition	0	shares
CY2021	syn	Sharebased Compensation Arrangementsby Sharebased Payment Award Options Assumedin Acquisition Weighted Average Exercise Price SharebasedCompensationArrangementsbySharebasedPaymentAwardOptionsAssumedinAcquisitionWeightedAverageExercisePrice	0
CY2020	syn	Sharebased Compensation Arrangementby Sharebased Payment Award Options Assumedin Acquisition SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAssumedinAcquisition	0	shares
CY2020	syn	Sharebased Compensation Arrangementsby Sharebased Payment Award Options Assumedin Acquisition Weighted Average Exercise Price SharebasedCompensationArrangementsbySharebasedPaymentAwardOptionsAssumedinAcquisitionWeightedAverageExercisePrice	0
CY2019	syn	Sharebased Compensation Arrangementby Sharebased Payment Award Options Assumedin Acquisition SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAssumedinAcquisition	3230000	shares
CY2019	syn	Sharebased Compensation Arrangementsby Sharebased Payment Award Options Assumedin Acquisition Weighted Average Exercise Price SharebasedCompensationArrangementsbySharebasedPaymentAwardOptionsAssumedinAcquisitionWeightedAverageExercisePrice	23.22
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	923000	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.07
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	572000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.67
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	820000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	19.91
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	64000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	33.50
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	13000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	34.23
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1478000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.71
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2401000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.47
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3037000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.74
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1478000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	22.71
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2401000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	22.47
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2399000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	19.52
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	37200000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y6M3D
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	21300000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5300000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	13600000	USD
CY2021	syn	Sharebased Compensation Arrangementby Sharebased Payment Award Award Performance Period SharebasedCompensationArrangementbySharebasedPaymentAwardAwardPerformancePeriod	P3Y
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
CY2020	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
CY2021	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.05
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.05
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.05
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21500000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21300000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	18800000	USD
CY2021	syn	Defined Contribution Plan Stock Purchase Plan Percent Of Match DefinedContributionPlanStockPurchasePlanPercentOfMatch	0.15
CY2019	syn	Defined Contribution Plan Stock Purchase Plan Percent Of Match DefinedContributionPlanStockPurchasePlanPercentOfMatch	0.15
CY2020	syn	Defined Contribution Plan Stock Purchase Plan Percent Of Match DefinedContributionPlanStockPurchasePlanPercentOfMatch	0.15
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1100000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1100000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1100000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	153911000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	187741000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	112517000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	29982000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	9421000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2085000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	183893000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	197162000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	114602000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	28873000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-90777000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	46182000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	16127000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4585000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	40451000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	45000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-86192000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	86633000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	228893000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	110970000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	201235000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	207765000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	101779000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	160653000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	38452000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11168000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	33764000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	10455000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	9207000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	6564000	USD
CY2021	syn	Effective Income Tax Rate Reconciliation Affordable Housing Projects Tax Creditsand Other Tax Benefits EffectiveIncomeTaxRateReconciliationAffordableHousingProjectsTaxCreditsandOtherTaxBenefits	4858000	USD
CY2020	syn	Effective Income Tax Rate Reconciliation Affordable Housing Projects Tax Creditsand Other Tax Benefits EffectiveIncomeTaxRateReconciliationAffordableHousingProjectsTaxCreditsandOtherTaxBenefits	2611000	USD
CY2019	syn	Effective Income Tax Rate Reconciliation Affordable Housing Projects Tax Creditsand Other Tax Benefits EffectiveIncomeTaxRateReconciliationAffordableHousingProjectsTaxCreditsandOtherTaxBenefits	1583000	USD
CY2021	syn	Effective Income Tax Rate Reconciliation Fdic Premiums EffectiveIncomeTaxRateReconciliationFDICPremiums	4111000	USD
CY2020	syn	Effective Income Tax Rate Reconciliation Fdic Premiums EffectiveIncomeTaxRateReconciliationFDICPremiums	4744000	USD
CY2019	syn	Effective Income Tax Rate Reconciliation Fdic Premiums EffectiveIncomeTaxRateReconciliationFDICPremiums	5802000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	3727000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	657000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	678000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-3084000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	311000	USD
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CY2020Q4	syn	Deferred Tax Liabilities Other Properties Held For Sale DeferredTaxLiabilitiesOtherPropertiesHeldForSale	3025000	USD
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CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	228893000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	110970000	USD
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CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.231
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.229
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.263
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	112180000	USD
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CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	5955000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	0	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	29684000	USD
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CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	0	USD
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CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	205000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	450066000	USD
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CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2700000	USD
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CY2021Q4	syn	Entity Full Time Equivalent Employees EntityFullTimeEquivalentEmployees	4887	employee
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CY2020Q4	syn	Entity Full Time Equivalent Employees EntityFullTimeEquivalentEmployees	5134	employee
CY2021	dei	Auditor Firm AuditorFirmId	185

Files In Submission

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$SNV
SYNOVUS FINANCIAL CORP Stock $snv

2021 Q4 Form 10-K Financial Statement

#000001834922000076 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SNV SYNOVUS FINANCIAL CORP Stock $snv

2021 Q4 Form 10-K Financial Statement

#000001834922000076 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SNV
SYNOVUS FINANCIAL CORP Stock $snv