$WLFC
WILLIS LEASE FINANCE CORP Stock $wlfc

$wlfc Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000101816420000008 Filed on March 12, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
Revenue	$409.2M	$118.2M	$80.96M
YoY Change	17.46%	83.81%	17.5%
Cost Of Revenue	$62.65M	$30.50M	$8.832M
YoY Change	2.66%	169.91%	38.0%
Gross Profit	$346.5M	$89.90M	$72.13M
YoY Change	20.6%	69.62%	15.4%
Gross Profit Margin	84.69%	76.06%	89.09%
Selling, General & Admin	$149.2M	$23.40M	$20.40M
YoY Change	79.29%	33.71%	20.71%
% of Gross Profit	43.05%	26.03%	28.28%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$86.20M	$21.20M	$19.90M
YoY Change	12.24%	23.26%	22.84%
% of Gross Profit	24.88%	23.58%	27.59%
Operating Expenses	$149.2M	$44.60M	$40.30M
YoY Change	-6.77%	28.16%	22.12%
Operating Profit	$80.30M	$45.30M	$12.75M
YoY Change	53.03%	148.9%	-56.78%
Interest Expense	$66.89M	-$17.60M	$17.89M
YoY Change	4.16%	43.09%	-225.95%
% of Operating Profit	83.3%	-38.85%	140.26%
Other Income/Expense, Net
YoY Change
Pretax Income	$88.88M	$21.80M	$13.26M
YoY Change	57.94%	581.25%	59.72%
Income Tax	$21.96M	$3.700M	$3.600M
% Of Pretax Income	24.71%	16.97%	27.16%
Net Earnings	$66.92M	$18.10M	$9.674M
YoY Change	54.8%	-57.61%	82.53%
Net Earnings / Revenue	16.36%	15.31%	11.95%
Basic Earnings Per Share	$10.90	$2.99	$1.50
Diluted Earnings Per Share	$10.50	$2.91	$1.47
COMMON SHARES
Basic Shares Outstanding	5.836M shares	5.782M shares	5.900M shares
Diluted Shares Outstanding	6.058M shares	5.939M shares	6.004M shares

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$6.700M	$11.70M	$8.400M
YoY Change	-42.74%	64.79%	6.33%
Cash & Equivalents	$6.700M	$11.69M	$163.9M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory	$41.80M	$48.90M	$24.40M
Prepaid Expenses
Receivables	$24.10M	$23.30M	$24.80M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$72.60M	$83.90M	$57.60M
YoY Change	-13.47%	98.35%	34.89%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.682B	$27.68M	$1.617B
YoY Change	-1.08%	-97.98%	32.94%
Goodwill
YoY Change
Intangibles		$1.379M
YoY Change
Long-Term Investments	$57.90M	$47.94M	$44.40M
YoY Change	20.88%	-5.33%	-9.94%
Other Assets	$57.10M	$71.10M	$196.4M
YoY Change	-19.69%	-4.44%	102.89%
Total Long-Term Assets	$1.868B	$1.851B	$1.908B
YoY Change	0.92%	18.57%	36.92%
TOTAL ASSETS
Total Short-Term Assets	$72.60M	$83.90M	$57.60M
Total Long-Term Assets	$1.868B	$1.851B	$1.908B
Total Assets	$1.941B	$1.935B	$1.965B
YoY Change	0.29%	20.68%	36.86%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$45.60M	$42.90M	$40.90M
YoY Change	6.29%	94.12%	95.69%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$66.20M	$70.90M	$69.50M
YoY Change	-6.63%	49.58%	52.41%
LONG-TERM LIABILITIES
Long-Term Debt	$1.251B	$1.337B	$1.392B
YoY Change	-6.45%	23.21%	49.35%
Other Long-Term Liabilities	$113.0M	$100.0M	$96.30M
YoY Change	13.0%	19.05%	26.05%
Total Long-Term Liabilities	$1.364B	$1.437B	$1.488B
YoY Change	-5.1%	22.91%	47.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$66.20M	$70.90M	$69.50M
Total Long-Term Liabilities	$1.364B	$1.437B	$1.488B
Total Liabilities	$1.541B	$1.599B	$1.645B
YoY Change	-3.63%	23.44%	40.5%
SHAREHOLDERS EQUITY
Retained Earnings		$286.6M
YoY Change
Common Stock		$62.00K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$400.0M	$286.8M	$270.7M
YoY Change
Total Liabilities & Shareholders Equity	$1.941B	$1.935B	$1.965B
YoY Change	0.29%	20.68%	36.86%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$66.92M	$18.10M	$9.674M
YoY Change	54.8%	-57.61%	82.53%
Depreciation, Depletion And Amortization	$86.20M	$21.20M	$19.90M
YoY Change	12.24%	23.26%	22.84%
Cash From Operating Activities	$230.3M	$73.20M	$33.50M
YoY Change	22.06%	191.63%	2.45%
INVESTING ACTIVITIES
Capital Expenditures	$6.330M	-$123.1M	-$77.90M
YoY Change	81.53%	-40.39%	19.48%
Acquisitions
YoY Change
Other Investing Activities	$148.3M	$27.30M	$8.900M
YoY Change	130.28%	457.14%	-37.32%
Cash From Investing Activities	-$147.4M	-$95.80M	-$69.00M
YoY Change	-61.25%	-52.5%	35.29%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$3.567M
YoY Change	-77.89%
Debt Paid & Issued, Net	$428.1M
YoY Change	-15.19%
Cash From Financing Activities	-$101.2M	-59.30M	152.5M
YoY Change	-144.68%	-139.01%	328.37%
NET CHANGE
Cash From Operating Activities	$230.3M	73.20M	33.50M
Cash From Investing Activities	-$147.4M	-95.80M	-69.00M
Cash From Financing Activities	-$101.2M	-59.30M	152.5M
Net Change In Cash	-$18.28M	-81.90M	117.0M
YoY Change	-152.8%	232.93%	576.3%
FREE CASH FLOW
Cash From Operating Activities	$230.3M	$73.20M	$33.50M
Capital Expenditures	$6.330M	-$123.1M	-$77.90M
Free Cash Flow	$224.0M	$196.3M	$111.4M
YoY Change	20.94%	-15.24%	13.79%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001018164
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	6945000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8666000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2559000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1730000	USD
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	6176000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	6356000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	6176000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	6356000	shares
CY2018	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3300000	USD
CY2019	us-gaap	Longterm Purchase Commitment Period LongtermPurchaseCommitmentPeriod	P4Y
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-174000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-50000	USD
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Coconut Creek
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	120000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-753000	USD
CY2018	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	1.30
CY2019	us-gaap	Preferred Stock Dividends Per Share Cash Paid PreferredStockDividendsPerShareCashPaid	1.30
CY2018Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	385483000	USD
CY2019Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	414835000	USD
CY2018Q4	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	2500000	shares
CY2019Q4	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	2500000	shares
CY2018Q4	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	2500000	shares
CY2019Q4	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	2500000	shares
CY2018Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	2500000	shares
CY2019Q4	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	2500000	shares
CY2018Q4	wlfc	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	81000	USD
CY2019Q4	wlfc	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-896000	USD
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-15369
CY2019	dei	Entity Registrant Name EntityRegistrantName	WILLIS LEASE FINANCE CORP
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	68-0070656
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	4700 Lyons Technology Parkway
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	FL
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	33073
CY2019	dei	City Area Code CityAreaCode	561
CY2019	dei	Local Phone Number LocalPhoneNumber	349-9989
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2019	dei	Trading Symbol TradingSymbol	WLFC
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	true
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	178300000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	5855913	shares
CY2019Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	38145000	USD
CY2018Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	238000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6720000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	11688000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	56948000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	70261000	USD
CY2019Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	1650918000	USD
CY2018Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	1673135000	USD
CY2019Q4	wlfc	Maintenance Rights MaintenanceRights	3133000	USD
CY2018Q4	wlfc	Maintenance Rights MaintenanceRights	14763000	USD
CY2019Q4	wlfc	Equipment Held For Sale EquipmentHeldForSale	120000	USD
CY2018Q4	wlfc	Equipment Held For Sale EquipmentHeldForSale	789000	USD
CY2019Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	24059000	USD
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CY2019Q4	us-gaap	Airline Related Inventory Aircraft Parts AirlineRelatedInventoryAircraftParts	41759000	USD
CY2018Q4	us-gaap	Airline Related Inventory Aircraft Parts AirlineRelatedInventoryAircraftParts	48874000	USD
CY2019Q4	us-gaap	Investments Investments	57936000	USD
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CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	31520000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	27679000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1312000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1379000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	28038000	USD
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CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	42939000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	110418000	USD
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CY2019Q4	us-gaap	Long Term Debt LongTermDebt	1251006000	USD
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CY2019Q4	wlfc	Maintenance Reserves MaintenanceReserves	106870000	USD
CY2018Q4	wlfc	Maintenance Reserves MaintenanceReserves	94522000	USD
CY2019Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	20569000	USD
CY2018Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	28047000	USD
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CY2019Q4	us-gaap	Liabilities Liabilities	1540632000	USD
CY2019	wlfc	Revenue From Sale Of Spare Parts RevenueFromSaleOfSpareParts	74651000	USD
CY2019	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	20044000	USD
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CY2019Q4	us-gaap	Common Stock Value CommonStockValue	64000	USD
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CY2019	us-gaap	Equipment Expense EquipmentExpense	8122000	USD
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CY2019	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	84000	USD
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CY2019	us-gaap	Temporary Equity Dividends Adjustment TemporaryEquityDividendsAdjustment	3250000	USD
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CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5836000	shares
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CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6058000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6046000	shares
CY2019	us-gaap	Net Income Loss NetIncomeLoss	66922000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	43231000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-222000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-3331000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	533000	USD
CY2019	wlfc	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Joint Venture OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxJointVenture	-774000	USD
CY2018	wlfc	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Joint Venture OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxJointVenture	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-4327000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-237000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-977000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-54000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3350000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-183000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	63572000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	43048000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	258910000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-596000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	413000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	16205000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	245000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	1288000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5410000	USD
CY2018	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	83000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3250000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	286787000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	66922000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-172000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-3178000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3567000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	335000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	1475000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7787000	USD
CY2019	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	84000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3250000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	350338000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	66922000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	43231000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	86236000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	76814000	USD
CY2019	us-gaap	Production Related Impairments Or Charges ProductionRelatedImpairmentsOrCharges	18220000	USD
CY2018	us-gaap	Production Related Impairments Or Charges ProductionRelatedImpairmentsOrCharges	10651000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	7787000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	5410000	USD
CY2019	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	6364000	USD
CY2018	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	6403000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-272000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1503000	USD
CY2019	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	20044000	USD
CY2018	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	6944000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	8578000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	3800000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-42000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	41000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-220000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-21074000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-12057000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	517000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	188687000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5925000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	3300000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	5730000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-29114000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-12111000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2519000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3453000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2131000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	12543000	USD
CY2019	wlfc	Increase Decrease In Maintenance Reserves IncreaseDecreaseInMaintenanceReserves	22282000	USD
CY2018	wlfc	Increase Decrease In Maintenance Reserves IncreaseDecreaseInMaintenanceReserves	21964000	USD
CY2019	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	2108000	USD
CY2018	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	-3075000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	661000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-2642000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	230315000	USD
CY2019	us-gaap	Proceeds From Sale Of Machinery And Equipment ProceedsFromSaleOfMachineryAndEquipment	191891000	USD
CY2018	us-gaap	Proceeds From Sale Of Machinery And Equipment ProceedsFromSaleOfMachineryAndEquipment	64429000	USD
CY2019	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	42857000	USD
CY2018	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2019	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	4950000	USD
CY2018	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2019	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	5713000	USD
CY2018	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	0	USD
CY2019	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	289385000	USD
CY2018	us-gaap	Payments To Acquire Equipment On Lease PaymentsToAcquireEquipmentOnLease	441416000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6330000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3487000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-147444000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-380474000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	340120000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	759439000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3142000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7748000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	428081000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	504753000	USD
CY2019	wlfc	Proceeds From Security Deposit ProceedsFromSecurityDeposit	2092000	USD
CY2018	wlfc	Proceeds From Security Deposit ProceedsFromSecurityDeposit	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	335000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	245000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3567000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	16135000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3250000	USD
CY2018	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3348000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1475000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1288000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-101152000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	226412000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-18281000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	34625000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	81949000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	47324000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	63668000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	81949000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	63585000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	59122000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	222000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1073000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2515000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	21656000	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	10131000	USD
CY2018	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2019	wlfc	Equipment Held For Sale Transfer To Spare Parts Inventory EquipmentHeldForSaleTransferToSparePartsInventory	23931000	USD
CY2018	wlfc	Equipment Held For Sale Transfer To Spare Parts Inventory EquipmentHeldForSaleTransferToSparePartsInventory	18220000	USD
CY2019	wlfc	Transfers From Equipment Held For Operating Lease To Spare Parts Inventory TransfersFromEquipmentHeldForOperatingLeaseToSparePartsInventory	422000	USD
CY2018	wlfc	Transfers From Equipment Held For Operating Lease To Spare Parts Inventory TransfersFromEquipmentHeldForOperatingLeaseToSparePartsInventory	26387000	USD
CY2019	wlfc	Accrued Preferred Stock Dividends AccruedPreferredStockDividends	686000	USD
CY2018	wlfc	Accrued Preferred Stock Dividends AccruedPreferredStockDividends	686000	USD
CY2019	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	84000	USD
CY2018	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	83000	USD
CY2019Q4	wlfc	Lease Rent Receivable Past Due LeaseRentReceivablePastDue	2700000	USD
CY2019Q4	wlfc	Maintenance Reserve Receivable Past Due MaintenanceReserveReceivablePastDue	3800000	USD
CY2019	wlfc	Lease Rent And Maintenance Reserve Payments Receivable Past Due Period Minimum LeaseRentAndMaintenanceReservePaymentsReceivablePastDuePeriodMinimum	P30D
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	800000	USD
CY2019	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<span style="font-family:inherit;font-size:10pt;">Interest Rate Hedging</span><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The Company enters into various derivative instruments periodically to mitigate the exposure on variable rate borrowings. The derivative instruments are fixed-rate interest swaps that are recorded at fair value as either an asset or liability.</span></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">While substantially all of the Company’s derivative transactions are entered into for the purposes described above, hedge accounting is only applied where specific criteria have been met and it is practicable to do so. In order to apply hedge accounting, the transaction must be designated as a hedge and it must be highly effective. The hedging instrument’s effectiveness is assessed utilizing regression analysis at the inception of the hedge and on at least a quarterly basis throughout its life. All of the transactions that the Company has designated as hedges are cash flow hedges. The effective portion of the change in fair value on a derivative instrument designated as a cash flow hedge is reported as a component of other comprehensive income and is reclassified into earnings in the period during which the transaction being hedged affects earnings. The ineffective portion of the hedges is recorded in earnings in the current period.</span></div>
CY2019Q4	wlfc	Prepaid Deposits PrepaidDeposits	10600000	USD
CY2018Q4	wlfc	Prepaid Deposits PrepaidDeposits	1900000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<span style="font-family:inherit;font-size:10pt;">Management Estimates</span><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">These financial statements have been prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States.</span></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The preparation of consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. Management evaluates estimates on an ongoing basis, including those related to residual values, estimated asset lives, impairments and bad debts. Estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.</span></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Management believes that the accounting policies on revenue recognition, maintenance reserves and expenditures, useful life of equipment, asset residual values, asset impairment and allowance for doubtful accounts are critical to the results of operations.</span></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">If the useful lives or residual values are lower than those estimated, upon sale of the asset a loss may be realized. Significant management judgment is required in the forecasting of future operating results, which are used in the preparation of projected undiscounted cash-flows and should different conditions prevail, material impairment write-downs may occur.</span></div>
CY2019Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.50
CY2019Q4	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Percentage BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage	0.50
CY2019	wlfc	Amortization Of Lease Acquisition Costs AmortizationOfLeaseAcquisitionCosts	2000000.0	USD
CY2018	wlfc	Amortization Of Lease Acquisition Costs AmortizationOfLeaseAcquisitionCosts	1900000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<span style="font-family:inherit;font-size:10pt;">Risk Concentrations</span><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Financial instruments which potentially subject us to concentrations of credit risk consist principally of cash deposits, lease receivables and interest rate swaps.</span></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The Company places its cash deposits with financial institutions and other credit-worthy institutions, such as money market funds, and limits the amount of credit exposure to any one party. Management opts for security of principal as opposed to yield. Concentrations of credit risk with respect to lease receivables are limited due to the large number of customers comprising the customer base, and their dispersion across different geographic areas. Some lessees are required to make payments for maintenance reserves at the end of the lease however, this risk is considered limited due to the relatively few lessees which have this provision in the lease. The Company enters into interest rate swap agreements with counterparties that are investment grade financial institutions.</span></div>
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4084000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4084000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	3835000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	3835000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y2M1D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.045
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	947000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	895000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	762000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	504000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	358000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	896000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	4362000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	527000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	3835000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	762000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	504000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	922000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	878000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	358000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	896000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	4320000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1172000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	676000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	638000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	645000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	483000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1183000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	4797000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	1326000	USD
CY2018	us-gaap	Operating Lease Cost OperatingLeaseCost	1688000	USD
CY2019	us-gaap	Lease Cost LeaseCost	1326000	USD
CY2018	us-gaap	Lease Cost LeaseCost	1688000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	920000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	495000	USD
CY2019	wlfc	Lease Rent Revenue LeaseRentRevenue	299688000	USD
CY2019	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	20044000	USD
CY2019	us-gaap	Revenues Revenues	409160000	USD
CY2018	wlfc	Lease Rent Revenue LeaseRentRevenue	262618000	USD
CY2018	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	6944000	USD
CY2018	us-gaap	Revenues Revenues	348347000	USD
CY2019Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	263	engine
CY2019Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	12
CY2019Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	1	vessel
CY2019Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	10	airframe_part_package
CY2019	wlfc	Number Of Geographic Regions In Which Aircraft Lessees Are Domiciled In NumberOfGeographicRegionsInWhichAircraftLesseesAreDomiciledIn	8	region
CY2018	us-gaap	Proceeds From Divestiture Of Interest In Joint Venture ProceedsFromDivestitureOfInterestInJointVenture	5730000	USD
CY2019Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	1650900000	USD
CY2018Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	244	engine
CY2018Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	17
CY2018Q4	wlfc	Number Of Leased Assets NumberOfLeasedAssets	10	airframe_part_package
CY2018Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	1673100000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	190690000	USD
CY2018	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	175609000	USD
CY2019Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	1650918000	USD
CY2018Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	1673135000	USD
CY2019Q4	us-gaap	Net Investment In Lease NetInvestmentInLease	1650918000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	155970000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	95015000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	59033000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	33418000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	21287000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	14754000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	379477000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	50641000	USD
CY2018	wlfc	Income Loss From Equity Method Investments Excluding Amortization On Deferred Gains IncomeLossFromEquityMethodInvestmentsExcludingAmortizationOnDeferredGains	3800000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	21081000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	1251006000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	1337349000	USD
CY2019Q4	wlfc	One Month Libor Rate At Period End OneMonthLIBORRateAtPeriodEnd	0.0176
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-770000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	47941000	USD
CY2019	wlfc	Income Loss From Equity Method Investments Excluding Amortization On Deferred Gains IncomeLossFromEquityMethodInvestmentsExcludingAmortizationOnDeferredGains	8578000	USD
CY2019	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	5713000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Interest In Joint Venture ProceedsFromDivestitureOfInterestInJointVenture	3300000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-222000	USD
CY2019	wlfc	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Joint Venture OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxJointVenture	-774000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	57936000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1270469000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1358430000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	19463000	USD
CY2018Q4	wlfc	One Month Libor Rate At Period End OneMonthLIBORRateAtPeriodEnd	0.0250
CY2019Q4	wlfc	Three Month Libor Rate At Period End ThreeMonthLIBORRateAtPeriodEnd	0.0191
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1157000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	56118000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	56415000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	207994000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	34018000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	430185000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	485739000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1270469000	USD
CY2019Q4	wlfc	Number Of Assets Used To Secure Debt NumberOfAssetsUsedToSecureDebt	2	engine
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	88182000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	55117000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	699000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	88881000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	56274000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-814000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	722000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	163000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	885000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	20205000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	869000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	21074000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	20205000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1591000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	163000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21959000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	364000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	622000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	986000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	12871000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	622000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13043000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12057000	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	12871000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-450000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	18665000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	11818000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1440000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-526000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	0	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	622000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	475000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	wlfc	Income Tax Reconciliation Permanent Differences Relating To Irs Section162m IncomeTaxReconciliationPermanentDifferencesRelatingToIRSSection162m	2083000	USD
CY2018	wlfc	Income Tax Reconciliation Permanent Differences Relating To Irs Section162m IncomeTaxReconciliationPermanentDifferencesRelatingToIRSSection162m	1144000	USD
CY2019	wlfc	Income Tax Reconciliation Nondeductible Expense Permanent Differences And Other Adjustments IncomeTaxReconciliationNondeductibleExpensePermanentDifferencesAndOtherAdjustments	-704000	USD
CY2018	wlfc	Income Tax Reconciliation Nondeductible Expense Permanent Differences And Other Adjustments IncomeTaxReconciliationNondeductibleExpensePermanentDifferencesAndOtherAdjustments	-15000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21959000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13043000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	191000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	9000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	182000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	250000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	162000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	270000	USD
CY2019Q4	wlfc	Uncertain Tax Positions Reserved For Foreign Exposure UncertainTaxPositionsReservedForForeignExposure	200000	USD
CY2018Q4	wlfc	Uncertain Tax Positions Reserved For Foreign Exposure UncertainTaxPositionsReservedForForeignExposure	0	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3600000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	19000	USD
CY2019Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	152000	USD
CY2018Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	77000	USD
CY2019Q4	wlfc	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves And Allowances DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReservesAndAllowances	1988000	USD
CY2019Q4	wlfc	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Lease Revenue DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedLeaseRevenue	1277000	USD
CY2018Q4	wlfc	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Lease Revenue DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedLeaseRevenue	1094000	USD
CY2018Q4	wlfc	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves And Allowances DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReservesAndAllowances	1187000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	4974000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	3795000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	26000	USD
CY2019Q4	wlfc	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	271000	USD
CY2018Q4	wlfc	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12091000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	39996000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	57000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	38000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	20829000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	46213000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	153000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	652000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	20676000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	45561000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	118595000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	133453000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	2350000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	6900000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	4198000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2365000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	132043000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	135818000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other Comprehensive Loss DeferredTaxAssetsOtherComprehensiveLoss	949000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	28000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	110418000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	90285000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	200000	USD
CY2019Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	39700000	USD
CY2018Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	200000	USD
CY2019Q4	us-gaap	Notes Payable Fair Value Disclosure NotesPayableFairValueDisclosure	1262600000	USD
CY2018Q4	us-gaap	Notes Payable Fair Value Disclosure NotesPayableFairValueDisclosure	1348100000	USD
CY2018	wlfc	Number Of Assets Impaired NumberOfAssetsImpaired	6	airframe_part_package
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	400	shares
CY2019Q4	wlfc	Impaired Assets Remaining Carrying Value ImpairedAssetsRemainingCarryingValue	37800000	USD
CY2019	wlfc	Number Of Assets Impaired NumberOfAssetsImpaired	16	engine
CY2018Q4	wlfc	Impaired Assets Remaining Carrying Value ImpairedAssetsRemainingCarryingValue	18300000	USD
CY2018	wlfc	Number Of Assets Impaired NumberOfAssetsImpaired	6	engine
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	63588000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39898000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5836000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5915000	shares
CY2019	wlfc	Potentially Dilutive Securities Earnings Per Share PotentiallyDilutiveSecuritiesEarningsPerShare	222000	shares
CY2018	wlfc	Potentially Dilutive Securities Earnings Per Share PotentiallyDilutiveSecuritiesEarningsPerShare	131000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6058000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6046000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.90
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.75
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.50
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.60
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	459300000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	16200000	USD
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	34.36
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	60000000.0	USD
CY2019Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	56400000	USD
CY2019	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.065
CY2019	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	49.29
CY2019Q4	us-gaap	Temporary Equity Liquidation Preference Per Share TemporaryEquityLiquidationPreferencePerShare	20.00
CY2019Q4	us-gaap	Temporary Equity Redemption Price Per Share TemporaryEquityRedemptionPricePerShare	20.00
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7787000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5410000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	615196	shares
CY2019	wlfc	Defined Contribution Plan Maximum Percentage Of Pre Tax Salary That Could Be Deferred By Participants DefinedContributionPlanMaximumPercentageOfPreTaxSalaryThatCouldBeDeferredByParticipants	0.75
CY2019	wlfc	Defined Contribution Plan Maximum Amount Of Pre Tax Salary That Could Be Deferred By Participants DefinedContributionPlanMaximumAmountOfPreTaxSalaryThatCouldBeDeferredByParticipants	19000	USD
CY2019	wlfc	Defined Contribution Plan Maximum Amount Of Wages To Be Deferred By Participants With50 Years Of Age DefinedContributionPlanMaximumAmountOfWagesToBeDeferredByParticipantsWith50YearsOfAge	25000	USD
CY2019	wlfc	Defined Contribution Plan Minimum Age Of Employees For Specified Contribution Amount DefinedContributionPlanMinimumAgeOfEmployeesForSpecifiedContributionAmount	P50Y
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.50
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	12500000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	300000	USD
CY2019Q1	us-gaap	Revenues Revenues	103769000	USD
CY2019Q2	us-gaap	Revenues Revenues	95797000	USD
CY2019Q3	us-gaap	Revenues Revenues	120366000	USD
CY2019Q4	us-gaap	Revenues Revenues	89228000	USD
CY2019	us-gaap	Revenues Revenues	409160000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	20056000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	16144000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23232000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4156000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	63588000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.47
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.75
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.97
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.90
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.35
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.66
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.81
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.50
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5779000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5866000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5847000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5850000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5836000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5978000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6061000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6094000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6099000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6058000	shares
CY2018Q1	us-gaap	Revenues Revenues	70497000	USD
CY2018Q2	us-gaap	Revenues Revenues	78702000	USD
CY2018Q3	us-gaap	Revenues Revenues	80958000	USD
CY2018Q4	us-gaap	Revenues Revenues	118190000	USD
CY2018	us-gaap	Revenues Revenues	348347000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6261000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	7528000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8834000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17274000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	39898000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.03
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.28
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.50
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.99
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.75
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.26
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.91
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.60
CY2018Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6104000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5878000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5900000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5782000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5915000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6256000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5991000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6004000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5939000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6046000	shares
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
CY2019	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	20044000	USD
CY2019	us-gaap	Revenues Revenues	409160000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	86236000	USD
CY2019	us-gaap	Cost Of Revenue CostOfRevenue	62647000	USD
CY2019	us-gaap	Production Related Impairments Or Charges ProductionRelatedImpairmentsOrCharges	18220000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	86523000	USD
CY2019	us-gaap	Equipment Expense EquipmentExpense	8122000	USD
CY2019	us-gaap	Interest Expense InterestExpense	66889000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-220000	USD
CY2019	wlfc	Finance Costs Net FinanceCostsNet	67109000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	328857000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	80303000	USD
CY2018	us-gaap	Gain Loss On Sale Of Leased Assets Net Operating Leases GainLossOnSaleOfLeasedAssetsNetOperatingLeases	6944000	USD
CY2018	us-gaap	Revenues Revenues	348347000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	76814000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	61025000	USD
CY2018	us-gaap	Production Related Impairments Or Charges ProductionRelatedImpairmentsOrCharges	10651000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	72021000	USD
CY2018	us-gaap	Equipment Expense EquipmentExpense	11142000	USD
CY2018	wlfc	Finance Costs Net FinanceCostsNet	64220000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	295873000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	52474000	USD
CY2019Q4	us-gaap	Assets Assets	1940608000	USD
CY2018Q4	us-gaap	Assets Assets	1934943000	USD

Files In Submission

Name	View Source	Status
0001018164-20-000008-index-headers.html	Edgar Link	pending
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wlfc-20191231_cal.xml	Edgar Link	unprocessable
wlfc-20191231_def.xml	Edgar Link	unprocessable
wlfc-20191231_lab.xml	Edgar Link	unprocessable
wlfc-20191231_pre.xml	Edgar Link	unprocessable

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$WLFC
WILLIS LEASE FINANCE CORP Stock $wlfc

2019 Form 10-K Financial Statement

#000101816420000008 Filed on March 12, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WLFC WILLIS LEASE FINANCE CORP Stock $wlfc

2019 Form 10-K Financial Statement

#000101816420000008 Filed on March 12, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WLFC
WILLIS LEASE FINANCE CORP Stock $wlfc