$LCII
LCI INDUSTRIES Stock $lcii

$lcii Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000076374419000018 Filed on February 27, 2019

Income Statement

Concept	2017 Q4	2017 Q3	2017 Q2
Revenue	$547.1M	$554.8M	$547.5M
YoY Change	35.8%	34.54%	24.19%
Cost Of Revenue	$430.3M	$433.6M	$416.4M
YoY Change	41.13%	41.32%	28.55%
Gross Profit	$116.8M	$121.2M	$131.1M
YoY Change	19.17%	14.85%	12.13%
Gross Profit Margin	21.35%	21.85%	23.94%
Selling, General & Admin	$72.60M	$73.29M	$68.05M
YoY Change	26.48%	21.32%	18.31%
% of Gross Profit	62.16%	60.46%	51.91%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$14.80M	$14.40M	$13.30M
YoY Change	18.4%	25.22%	17.7%
% of Gross Profit	12.67%	11.88%	10.15%
Operating Expenses	$72.70M	$73.29M	$68.05M
YoY Change	26.66%	21.32%	18.31%
Operating Profit	$44.09M	$47.93M	$63.04M
YoY Change	8.58%	6.18%	6.15%
Interest Expense	-$300.0K	-$300.0K	-$400.0K
YoY Change	-25.0%	-25.0%	0.0%
% of Operating Profit	-0.68%	-0.63%	-0.63%
Other Income/Expense, Net
YoY Change
Pretax Income	$43.91M	$47.62M	$62.63M
YoY Change	9.22%	6.42%	6.19%
Income Tax	$13.20M	$15.48M	$22.49M
% Of Pretax Income	30.06%	32.51%	35.91%
Net Earnings	$17.46M	$32.14M	$40.14M
YoY Change	-33.59%	7.69%	6.84%
Net Earnings / Revenue	3.19%	5.79%	7.33%
Basic Earnings Per Share	$0.70	$1.28	$1.61
Diluted Earnings Per Share	$0.68	$1.26	$1.59
COMMON SHARES
Basic Shares Outstanding	24.94M shares	25.06M shares	24.99M shares
Diluted Shares Outstanding		25.46M shares	25.31M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$26.00M	$19.80M	$38.00M
YoY Change	-69.84%	-79.18%	-51.65%
Cash & Equivalents	$26.05M	$19.76M	$37.96M
Short-Term Investments
Other Short-Term Assets	$34.10M	$45.40M	$44.00M
YoY Change	-2.85%	58.74%	71.88%
Inventory	$274.7M	$229.8M	$202.6M
Prepaid Expenses
Receivables	$82.16M	$139.1M	$130.5M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$417.1M	$434.1M	$415.1M
YoY Change	13.52%	15.88%	16.7%
LONG-TERM ASSETS
Property, Plant & Equipment	$229.0M	$210.3M	$203.2M
YoY Change	32.53%	37.3%	34.35%
Goodwill	$124.2M	$123.0M	$122.3M
YoY Change	39.22%	30.96%	30.31%
Intangibles	$130.1M	$134.8M	$138.9M
YoY Change	15.22%	23.01%	21.82%
Long-Term Investments
YoY Change
Other Assets	$21.36M	$21.28M	$13.34M
YoY Change	69.08%	50.95%	-2.28%
Total Long-Term Assets	$528.8M	$521.7M	$509.6M
YoY Change	26.05%	30.45%	26.72%
TOTAL ASSETS
Total Short-Term Assets	$417.1M	$434.1M	$415.1M
Total Long-Term Assets	$528.8M	$521.7M	$509.6M
Total Assets	$945.9M	$955.8M	$924.7M
YoY Change	20.2%	23.4%	22.01%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$79.20M	$88.10M	$80.60M
YoY Change	56.52%	58.17%	51.22%
Accrued Expenses	$102.8M	$109.8M	$114.5M
YoY Change	4.17%	12.4%	1.07%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$0.00	$0.00
YoY Change
Total Short-Term Liabilities	$182.0M	$198.0M	$195.1M
YoY Change	21.87%	29.06%	17.1%
LONG-TERM LIABILITIES
Long-Term Debt	$49.92M	$49.92M	$49.91M
YoY Change	-0.05%	-0.04%	-0.04%
Other Long-Term Liabilities	$61.18M	$60.81M	$59.93M
YoY Change	63.86%	52.79%	56.55%
Total Long-Term Liabilities	$111.1M	$110.7M	$109.8M
YoY Change	27.29%	23.39%	24.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$182.0M	$198.0M	$195.1M
Total Long-Term Liabilities	$111.1M	$110.7M	$109.8M
Total Liabilities	$293.1M	$308.7M	$304.9M
YoY Change	23.87%	26.97%	19.67%
SHAREHOLDERS EQUITY
Retained Earnings	$475.5M	$472.2M	$452.9M
YoY Change	20.3%	23.69%	25.97%
Common Stock	$204.3M	$202.1M	$195.7M
YoY Change	9.67%	12.46%	12.65%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$29.47M	$29.47M	$29.47M
YoY Change	0.0%	0.0%	0.0%
Treasury Stock Shares	2.684M shares	2.684M shares	2.684M shares
Shareholders Equity	$652.7M	$647.1M	$619.8M
YoY Change
Total Liabilities & Shareholders Equity	$945.9M	$955.8M	$924.7M
YoY Change	20.2%	23.4%	22.01%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017 Q2
OPERATING ACTIVITIES
Net Income	$17.46M	$32.14M	$40.14M
YoY Change	-33.59%	7.69%	6.84%
Depreciation, Depletion And Amortization	$14.80M	$14.40M	$13.30M
YoY Change	18.4%	25.22%	17.7%
Cash From Operating Activities	$43.80M	$12.20M	$73.90M
YoY Change	11.45%	-60.26%	-17.61%
INVESTING ACTIVITIES
Capital Expenditures	-$26.90M	-$17.00M	-$31.30M
YoY Change	17.98%	97.67%	360.29%
Acquisitions
YoY Change
Other Investing Activities	$8.900M	$0.00	-$57.10M
YoY Change	-168.46%	-100.0%	254.66%
Cash From Investing Activities	-$17.90M	-$17.10M	-$88.40M
YoY Change	-50.0%	101.18%	286.03%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-19.60M	-13.30M	-12.00M
YoY Change	58.06%	133.33%	-25.47%
NET CHANGE
Cash From Operating Activities	43.80M	12.20M	73.90M
Cash From Investing Activities	-17.90M	-17.10M	-88.40M
Cash From Financing Activities	-19.60M	-13.30M	-12.00M
Net Change In Cash	6.300M	-18.20M	-26.50M
YoY Change	-170.79%	-210.3%	-152.27%
FREE CASH FLOW
Cash From Operating Activities	$43.80M	$12.20M	$73.90M
Capital Expenditures	-$26.90M	-$17.00M	-$31.30M
Free Cash Flow	$70.70M	$29.20M	$105.2M
YoY Change	13.85%	-25.7%	9.02%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Entity Registrant Name EntityRegistrantName	LCI INDUSTRIES
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000763744
CY2018	dei	Trading Symbol TradingSymbol	lcii
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	24863161	shares
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018Q2	dei	Entity Public Float EntityPublicFloat	1549669846	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1895000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1536000	USD
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	27948000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	27674000	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	3087000	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2684000	shares
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	274177	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	239854	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	395274	shares
CY2017	lcii	Issuance Of Deferred Stock Units Shares IssuanceOfDeferredStockUnitsShares	63677	shares
CY2016	lcii	Issuance Of Deferred Stock Units Shares IssuanceOfDeferredStockUnitsShares	4784	shares
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	402570	shares
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.35
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.05
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.40
CY2018	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P3Y
CY2018	lcii	Period Long Term Sales Growth Forecasted Over PeriodLongTermSalesGrowthForecastedOver	P6Y
CY2018	lcii	Period Long Term Sales Growth Forecasted Over PeriodLongTermSalesGrowthForecastedOver	P6Y
CY2018	us-gaap	Revenues Revenues	2475807000	USD
CY2017	us-gaap	Revenues Revenues	2147770000	USD
CY2016	us-gaap	Revenues Revenues	1678898000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1955463000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1654656000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1249995000	USD
CY2018	us-gaap	Gross Profit GrossProfit	520344000	USD
CY2017	us-gaap	Gross Profit GrossProfit	493114000	USD
CY2016	us-gaap	Gross Profit GrossProfit	428903000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	321556000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	278833000	USD
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CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	200850000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-6436000	USD
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CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	192352000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	212844000	USD
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CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-6287000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	15346000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	29975000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	156608000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	152702000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	201667000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	119827000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	87221000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	44671000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	184792000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	60588000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	48725000	USD
CY2018	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	2000000	USD
CY2017	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	1500000	USD
CY2016	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	2000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	176000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-434000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	311000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-302795000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-145875000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-91707000	USD
CY2018	lcii	Proceedsfrom Issuanceof Sharesunder Incentiveand Sharebased Compensation Plans Including Stock Options Netof Payments Relatedto Tax Withholdingfor Sharebased Compensation ProceedsfromIssuanceofSharesunderIncentiveandSharebasedCompensationPlansIncludingStockOptionsNetofPaymentsRelatedtoTaxWithholdingforSharebasedCompensation	-16097000	USD
CY2017	lcii	Proceedsfrom Issuanceof Sharesunder Incentiveand Sharebased Compensation Plans Including Stock Options Netof Payments Relatedto Tax Withholdingfor Sharebased Compensation ProceedsfromIssuanceofSharesunderIncentiveandSharebasedCompensationPlansIncludingStockOptionsNetofPaymentsRelatedtoTaxWithholdingforSharebasedCompensation	-10531000	USD
CY2016	lcii	Proceedsfrom Issuanceof Sharesunder Incentiveand Sharebased Compensation Plans Including Stock Options Netof Payments Relatedto Tax Withholdingfor Sharebased Compensation ProceedsfromIssuanceofSharesunderIncentiveandSharebasedCompensationPlansIncludingStockOptionsNetofPaymentsRelatedtoTaxWithholdingforSharebasedCompensation	2574000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1387013000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	28130000	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	81458000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1146953000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	28130000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	81458000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4509000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	59270000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	51057000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	34437000	USD
CY2018	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	3068000	USD
CY2017	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	5301000	USD
CY2016	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	3204000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	28695000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2373000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-59000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1028000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	135066000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-66948000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-36095000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-11121000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-60121000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	73865000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26049000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	86170000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12305000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14928000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26049000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	86170000	USD
CY2018	us-gaap	Interest Paid InterestPaid	5645000	USD
CY2017	us-gaap	Interest Paid InterestPaid	1650000	USD
CY2016	us-gaap	Interest Paid InterestPaid	1992000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	39991000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	53620000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	65792000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	385000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2640000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1461000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	438575000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	129671000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-5409000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	7983000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15420000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	264000	USD
CY2016	us-gaap	Dividends Cash DividendsCash	34437000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	550269000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	132884000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-10531000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20036000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	6907000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	4237000	USD
CY2017	us-gaap	Dividends Cash DividendsCash	51057000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	652745000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	148551000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-16097000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14065000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	28695000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5044000	USD
CY2018	us-gaap	Dividends Cash DividendsCash	59270000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	706255000	USD
CY2018	us-gaap	Basis Of Accounting BasisOfAccounting	BASIS OF PRESENTATION <div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Consolidated Financial Statements include the accounts of LCI Industries and its wholly-owned subsidiaries (“LCII” and collectively with its subsidiaries, the “Company”). LCII has no unconsolidated subsidiaries. LCII, through its wholly-owned subsidiary, Lippert Components, Inc. and its subsidiaries (collectively, “Lippert Components” or “LCI”), supplies, domestically and internationally, a broad array of engineered components for the leading original equipment manufacturers (“OEMs”) in the recreation and industrial product markets, consisting of recreational vehicles (“RVs”) and adjacent industries including buses; trailers used to haul boats, livestock, equipment and other cargo; trucks; boats; trains; manufactured homes; and modular housing. The Company also supplies engineered components to the related aftermarkets of these industries, primarily by selling to retail dealers, wholesale distributors and service centers. At December 31, 2018, the Company operated over 65 manufacturing and distribution facilities located throughout the United States and in Canada, Ireland, Italy and the United Kingdom.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Most industries where the Company sells products or where its products are used historically have been seasonal and are generally at the highest levels when the weather is moderate. Accordingly, the Company’s sales and profits have generally been the highest in the second quarter and lowest in the fourth quarter. However, because of fluctuations in dealer inventories, the impact of international, national and regional economic conditions and consumer confidence on retail sales of RVs and other products for which the Company sells its components, the timing of dealer orders, and the impact of severe weather conditions on the timing of industry-wide shipments from time to time, current and future seasonal industry trends may be different than in prior years. Additionally, sales of certain engineered components to the aftermarket channels of these industries tend to be counter-seasonal. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company is not aware of any significant events, except as disclosed in the Notes to Consolidated Financial Statements, which occurred subsequent to the balance sheet date but prior to the filing of this report that would have a material impact on the Consolidated Financial Statements. All significant intercompany balances and transactions have been eliminated. Certain prior year balances have been reclassified to conform to the current year presentation.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Use of Estimates</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, net sales and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to product returns, sales and purchase rebates, accounts receivable, inventories, goodwill and other intangible assets, net assets of acquired businesses, income taxes, warranty and product recall obligations, self-insurance obligations, lease terminations, asset retirement obligations, long-lived assets, post-retirement benefits, stock-based compensation, segment allocations, contingent consideration, environmental liabilities, contingencies and litigation. The Company bases its estimates on historical experience, other available information and various other assumptions believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other resources. Actual results and events could differ significantly from management estimates.</span></div>
CY2018	lcii	Number Of Unconsolidated Subsidiaries NumberOfUnconsolidatedSubsidiaries	0	subsidiary
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Use of Estimates</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, net sales and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to product returns, sales and purchase rebates, accounts receivable, inventories, goodwill and other intangible assets, net assets of acquired businesses, income taxes, warranty and product recall obligations, self-insurance obligations, lease terminations, asset retirement obligations, long-lived assets, post-retirement benefits, stock-based compensation, segment allocations, contingent consideration, environmental liabilities, contingencies and litigation. The Company bases its estimates on historical experience, other available information and various other assumptions believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other resources. Actual results and events could differ significantly from management estimates.</span></div>
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	8400000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	89198000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	29772000	USD
CY2017	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	5213000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	124183000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	56067000	USD
CY2018	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	-82000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	180168000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	176342000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	130132000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	281106000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	104764000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	176342000	USD
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	220790000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	90658000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	130132000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	21262000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	19573000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17758000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	21600000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	19200000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	17700000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	16700000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	15600000	USD
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	284467000	USD
CY2017Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	233187000	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	12291000	USD
CY2017Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	10408000	USD
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	43857000	USD
CY2017Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	31153000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	340615000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	274748000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	559234000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	424056000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	236358000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	195106000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	322876000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	228950000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	35656000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	27042000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	22993000	USD
CY2018	lcii	Selling General And Administrative Expenses Depreciation And Amortization SellingGeneralAndAdministrativeExpensesDepreciationAndAmortization	10608000	USD
CY2017	lcii	Selling General And Administrative Expenses Depreciation And Amortization SellingGeneralAndAdministrativeExpensesDepreciationAndAmortization	7798000	USD
CY2016	lcii	Selling General And Administrative Expenses Depreciation And Amortization SellingGeneralAndAdministrativeExpensesDepreciationAndAmortization	5140000	USD
CY2018	lcii	Property Plan And Equipment Depreciation And Amortization PropertyPlanAndEquipmentDepreciationAndAmortization	46264000	USD
CY2017	lcii	Property Plan And Equipment Depreciation And Amortization PropertyPlanAndEquipmentDepreciationAndAmortization	34840000	USD
CY2016	lcii	Property Plan And Equipment Depreciation And Amortization PropertyPlanAndEquipmentDepreciationAndAmortization	28133000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	33835000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	39365000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	32180000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	23055000	USD
CY2018Q4	lcii	Sales Rebates Accrual Current SalesRebatesAccrualCurrent	6193000	USD
CY2017Q4	lcii	Sales Rebates Accrual Current SalesRebatesAccrualCurrent	11124000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	27020000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	29305000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	99228000	USD
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	102849000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	38502000	USD
CY2016Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	32393000	USD
CY2015Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	26204000	USD
CY2018	us-gaap	Product Warranty Expense ProductWarrantyExpense	31819000	USD
CY2017	us-gaap	Product Warranty Expense ProductWarrantyExpense	25399000	USD
CY2016	us-gaap	Product Warranty Expense ProductWarrantyExpense	20985000	USD
CY2018	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	760000	USD
CY2017	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	150000	USD
CY2016Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	32393000	USD
CY2016	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	125000	USD
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	24551000	USD
CY2017	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	19440000	USD
CY2016	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	14921000	USD
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	46530000	USD
CY2017Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	38502000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	14350000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	15447000	USD
CY2016Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	12000000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	32180000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	23055000	USD
CY2016Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	20393000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	6800000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	4200000	USD
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	3100000	USD
CY2018	lcii	Deferred Compensation Percentage Of Funds Invested DeferredCompensationPercentageOfFundsInvested	0.85
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	361000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	76000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	294124000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	49924000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	596000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	293528000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	49924000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	191095000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	213967000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	196827000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1257000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-1123000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2345000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	192352000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	212844000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	199172000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1736000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7614000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	61073000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6416000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10720000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	22297000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	62274000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10560000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1214000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	158000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	466000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	29927000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	73152000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	72099000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	12478000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6808000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2598000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2506000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1639000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43801000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	79960000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-806000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-110000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-243000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	18000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13874000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	69501000	USD
CY2018	lcii	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	600000	USD
CY2017	lcii	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseBenefit	13200000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	40394000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	74495000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	69710000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6261000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6011000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6480000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-598000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-322000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-614000	USD
CY2018	lcii	Effective Income Tax Rate Reconciliation Permanent Add Back EffectiveIncomeTaxRateReconciliationPermanentAddBack	894000	USD
CY2017	lcii	Effective Income Tax Rate Reconciliation Permanent Add Back EffectiveIncomeTaxRateReconciliationPermanentAddBack	0	USD
CY2016	lcii	Effective Income Tax Rate Reconciliation Permanent Add Back EffectiveIncomeTaxRateReconciliationPermanentAddBack	0	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	0	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	5511000	USD
CY2016	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	5067000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-2914000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-7683000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1876000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1110000	USD
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	402570	shares
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	612000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	13210000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1028000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	870000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	728000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43801000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	79960000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	69501000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	3854000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	5773000	USD
CY2018Q4	lcii	Deferred Tax Assets Share Based Compensation DeferredTaxAssetsShareBasedCompensation	2956000	USD
CY2017Q4	lcii	Deferred Tax Assets Share Based Compensation DeferredTaxAssetsShareBasedCompensation	7607000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	6710000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	5387000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	10931000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	9282000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	6375000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	5591000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4276000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2966000	USD
CY2018Q4	lcii	Deferred Tax Assets Operating Loss And Interest Carryforwards Foreign DeferredTaxAssetsOperatingLossAndInterestCarryforwardsForeign	1467000	USD
CY2017Q4	lcii	Deferred Tax Assets Operating Loss And Interest Carryforwards Foreign DeferredTaxAssetsOperatingLossAndInterestCarryforwardsForeign	12000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	36569000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	36618000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1261000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	35308000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	36618000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	24360000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12462000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	10948000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	24156000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	1300000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4145000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3747000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2854000	USD
CY2018	lcii	Unrecognized Tax Benefits Increases Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions	114000	USD
CY2017	lcii	Unrecognized Tax Benefits Increases Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions	-174000	USD
CY2016	lcii	Unrecognized Tax Benefits Increases Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromPriorPeriodTaxPositions	214000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	802000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1255000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1252000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	211000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	736000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	472000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	573000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4325000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4145000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3747000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3900000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3700000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2900000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	18807000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	15113000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	12449000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	9113000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6627000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	23894000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	86003000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	24200000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	15200000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	11500000	USD
CY2017Q4	lcii	Business Acquisition Contingent Consideration Fair Value BusinessAcquisitionContingentConsiderationFairValue	12545000	USD
CY2016Q4	lcii	Business Acquisition Contingent Consideration Fair Value BusinessAcquisitionContingentConsiderationFairValue	9241000	USD
CY2015Q4	lcii	Business Acquisition Contingent Consideration Fair Value BusinessAcquisitionContingentConsiderationFairValue	10840000	USD
CY2018	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	43000	USD
CY2017	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	7288000	USD
CY2016	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	1322000	USD
CY2018	lcii	Payment Of Contingent Consideration PaymentOfContingentConsideration	4803000	USD
CY2017	lcii	Payment Of Contingent Consideration PaymentOfContingentConsideration	7682000	USD
CY2016	lcii	Payment Of Contingent Consideration PaymentOfContingentConsideration	4944000	USD
CY2018	us-gaap	Accretion Expense AccretionExpense	951000	USD
CY2017	us-gaap	Accretion Expense AccretionExpense	1652000	USD
CY2016	us-gaap	Accretion Expense AccretionExpense	1274000	USD
CY2018	lcii	Business Combination Contingent Consideration Liability Fair Value Adjustments BusinessCombinationContingentConsiderationLiabilityFairValueAdjustments	-944000	USD
CY2017	lcii	Business Combination Contingent Consideration Liability Fair Value Adjustments BusinessCombinationContingentConsiderationLiabilityFairValueAdjustments	1257000	USD
CY2016	lcii	Business Combination Contingent Consideration Liability Fair Value Adjustments BusinessCombinationContingentConsiderationLiabilityFairValueAdjustments	749000	USD
CY2018	lcii	Business Acquisition Contingent Consideration Net Foreign Currency Translation Adjustment BusinessAcquisitionContingentConsiderationNetForeignCurrencyTranslationAdjustment	-490000	USD
CY2017	lcii	Business Acquisition Contingent Consideration Net Foreign Currency Translation Adjustment BusinessAcquisitionContingentConsiderationNetForeignCurrencyTranslationAdjustment	789000	USD
CY2016	lcii	Business Acquisition Contingent Consideration Net Foreign Currency Translation Adjustment BusinessAcquisitionContingentConsiderationNetForeignCurrencyTranslationAdjustment	0	USD
CY2018Q4	lcii	Business Acquisition Contingent Consideration Fair Value BusinessAcquisitionContingentConsiderationFairValue	7302000	USD
CY2017Q4	lcii	Business Acquisition Contingent Consideration Fair Value BusinessAcquisitionContingentConsiderationFairValue	12545000	USD
CY2016Q4	lcii	Business Acquisition Contingent Consideration Fair Value BusinessAcquisitionContingentConsiderationFairValue	9241000	USD
CY2018Q4	lcii	Business Acquisition Contingent Consideration Current BusinessAcquisitionContingentConsiderationCurrent	17000	USD
CY2017Q4	lcii	Business Acquisition Contingent Consideration Current BusinessAcquisitionContingentConsiderationCurrent	4658000	USD
CY2016Q4	lcii	Business Acquisition Contingent Consideration Current BusinessAcquisitionContingentConsiderationCurrent	5829000	USD
CY2018Q4	lcii	Business Acquisition Contingent Consideration Non Current BusinessAcquisitionContingentConsiderationNonCurrent	7285000	USD
CY2017Q4	lcii	Business Acquisition Contingent Consideration Non Current BusinessAcquisitionContingentConsiderationNonCurrent	7887000	USD
CY2016Q4	lcii	Business Acquisition Contingent Consideration Non Current BusinessAcquisitionContingentConsiderationNonCurrent	3412000	USD
CY2018Q4	lcii	Contingent Consideration Estimated Payment ContingentConsiderationEstimatedPayment	9100000	USD
CY2016Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
CY2016Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
CY2016Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.40
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
CY2017Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.50
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.05
CY2018Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.55
CY2018Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.60
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.60
CY2018Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.60
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.35
CY2018Q2	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	1500000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1570274	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	737689	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1049752	shares
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14065000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20036000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15420000	USD
CY2017	lcii	Compensation Exchanged For Share Based Awards CompensationExchangedForShareBasedAwards	6900000	USD
CY2016	lcii	Compensation Exchanged For Share Based Awards CompensationExchangedForShareBasedAwards	300000	USD
CY2018	lcii	Share Based Compensation Arrangement By Share Based Payment Award Options Exercise Price As Percentage Of Fair Market Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePriceAsPercentageOfFairMarketValue	1
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2340000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	13204000	USD
CY2017	lcii	Sharebased Payment Award Options Cash Receipts Upon The Exercise Of Stock Options SharebasedPaymentAwardOptionsCashReceiptsUponTheExerciseOfStockOptions	450000	USD
CY2016	lcii	Sharebased Payment Award Options Cash Receipts Upon The Exercise Of Stock Options SharebasedPaymentAwardOptionsCashReceiptsUponTheExerciseOfStockOptions	2772000	USD
CY2017	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	900000	USD
CY2016	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	4435000	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	0	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	506000	USD
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	104073	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	184277	shares
CY2018Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	150000000.0	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25178000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25020000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24631000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	285000	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	355000	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	302000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25463000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25375000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	24933000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	94747	shares
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	71.28
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	28700000	USD
CY2018Q4	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	5	derivative_instrument
CY2018	us-gaap	Derivative Nonmonetary Notional Amount Mass DerivativeNonmonetaryNotionalAmountMass	34400000	lb
CY2018	us-gaap	Underlying Derivative Mass UnderlyingDerivativeMass	0.39
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1100000	USD
CY2018Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	900000	USD
CY2018Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	200000	USD
CY2017	us-gaap	Derivative Nonmonetary Notional Amount Mass DerivativeNonmonetaryNotionalAmountMass	12000000.0	lb
CY2017	us-gaap	Underlying Derivative Mass UnderlyingDerivativeMass	0.25
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	900000	USD
CY2018	lcii	Long Term Sales Growth Forecast Percent LongTermSalesGrowthForecastPercent	0.13
CY2017	us-gaap	Revenues Revenues	2147770000	USD
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2018	us-gaap	Revenues Revenues	2475807000	USD
CY2017	us-gaap	Revenues Revenues	2147770000	USD
CY2016	us-gaap	Revenues Revenues	1678898000	USD
CY2018	us-gaap	Revenues Revenues	2475807000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	198788000	USD
CY2018Q4	us-gaap	Assets Assets	1243893000	USD
CY2018	lcii	Addition To Noncurrent Assets AdditionToNoncurrentAssets	268439000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	67526000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	214281000	USD
CY2017Q4	us-gaap	Assets Assets	945858000	USD
CY2017	lcii	Addition To Noncurrent Assets AdditionToNoncurrentAssets	153445000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	54727000	USD
CY2016	us-gaap	Revenues Revenues	1678898000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	200850000	USD
CY2016Q4	us-gaap	Assets Assets	786904000	USD
CY2016	lcii	Addition To Noncurrent Assets AdditionToNoncurrentAssets	86602000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46167000	USD
CY2018	lcii	Additions To Noncurrent Assets As Part Of Business Acquisition AdditionsToNoncurrentAssetsAsPartOfBusinessAcquisition	150900000	USD
CY2017	lcii	Additions To Noncurrent Assets As Part Of Business Acquisition AdditionsToNoncurrentAssetsAsPartOfBusinessAcquisition	65000000.0	USD
CY2016	lcii	Additions To Noncurrent Assets As Part Of Business Acquisition AdditionsToNoncurrentAssetsAsPartOfBusinessAcquisition	42000000.0	USD
CY2018	us-gaap	Revenues Revenues	2475807000	USD
CY2017	us-gaap	Revenues Revenues	2147770000	USD
CY2016	us-gaap	Revenues Revenues	1678898000	USD
CY2018Q1	us-gaap	Revenues Revenues	650492000	USD
CY2018Q2	us-gaap	Revenues Revenues	684455000	USD
CY2018Q3	us-gaap	Revenues Revenues	604244000	USD
CY2018Q4	us-gaap	Revenues Revenues	536616000	USD
CY2018	us-gaap	Revenues Revenues	2475807000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	140733000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	150456000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	125901000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	103254000	USD
CY2018	us-gaap	Gross Profit GrossProfit	520344000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	58719000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	62428000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	43633000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	27572000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	192352000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	47336000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	47224000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	33812000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	20179000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	148551000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.88
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.90
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.83
CY2018Q1	lcii	Stock Market Price Maximum StockMarketPriceMaximum	132.30
CY2018Q2	lcii	Stock Market Price Maximum StockMarketPriceMaximum	104.90
CY2018Q3	lcii	Stock Market Price Maximum StockMarketPriceMaximum	102.23
CY2018Q4	lcii	Stock Market Price Maximum StockMarketPriceMaximum	80.89
CY2018	lcii	Stock Market Price Maximum StockMarketPriceMaximum	132.30
CY2018Q1	lcii	Stock Market Price Minimum StockMarketPriceMinimum	99.46
CY2018Q2	lcii	Stock Market Price Minimum StockMarketPriceMinimum	80.95
CY2018Q3	lcii	Stock Market Price Minimum StockMarketPriceMinimum	98.40
CY2018Q4	lcii	Stock Market Price Minimum StockMarketPriceMinimum	59.68
CY2018	lcii	Stock Market Price Minimum StockMarketPriceMinimum	59.68
CY2018Q1	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	104.15
CY2018Q2	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	90.15
CY2018Q3	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	69.35
CY2018Q4	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	66.80
CY2017Q2	us-gaap	Gross Profit GrossProfit	131087000	USD
CY2017Q3	lcii	Stock Market Price Maximum StockMarketPriceMaximum	116.63
CY2017Q3	us-gaap	Gross Profit GrossProfit	121220000	USD
CY2018Q4	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	66.80
CY2017Q1	us-gaap	Revenues Revenues	498336000	USD
CY2017Q2	us-gaap	Revenues Revenues	547483000	USD
CY2017Q3	us-gaap	Revenues Revenues	554814000	USD
CY2017Q4	us-gaap	Revenues Revenues	547137000	USD
CY2017	us-gaap	Revenues Revenues	2147770000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	124014000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	116793000	USD
CY2017	us-gaap	Gross Profit GrossProfit	493114000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	58692000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	62626000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	47616000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	43910000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	212844000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	43145000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	40137000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	32138000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	17464000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	132884000	USD
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.73
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.61
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.28
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.31
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.59
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.26
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.68
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.24
CY2017Q1	lcii	Stock Market Price Maximum StockMarketPriceMaximum	117.15
CY2017Q2	lcii	Stock Market Price Maximum StockMarketPriceMaximum	106.23
CY2017Q4	lcii	Stock Market Price Maximum StockMarketPriceMaximum	132.73
CY2017Q4	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	130.00
CY2017	lcii	Stock Market Price Maximum StockMarketPriceMaximum	132.73
CY2017Q1	lcii	Stock Market Price Minimum StockMarketPriceMinimum	94.98
CY2017Q4	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	130.00
CY2017Q2	lcii	Stock Market Price Minimum StockMarketPriceMinimum	86.25
CY2017Q3	lcii	Stock Market Price Minimum StockMarketPriceMinimum	93.08
CY2017Q4	lcii	Stock Market Price Minimum StockMarketPriceMinimum	104.15
CY2017	lcii	Stock Market Price Minimum StockMarketPriceMinimum	86.25
CY2017Q1	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	99.80
CY2017Q2	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	102.40
CY2017Q3	lcii	Stock Market Price End Of Period StockMarketPriceEndOfPeriod	115.85

Files In Submission

Name	View Source	Status
0000763744-19-000018-index-headers.html	Edgar Link	pending
0000763744-19-000018-index.html	Edgar Link	pending
0000763744-19-000018.txt	Edgar Link	pending
0000763744-19-000018-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
lcii-12312018xex21.htm	Edgar Link	pending
lcii-12312018xex23.htm	Edgar Link	pending
lcii-12312018xex311.htm	Edgar Link	pending
lcii-12312018xex312.htm	Edgar Link	pending
lcii-12312018xex321.htm	Edgar Link	pending
lcii-12312018xex322.htm	Edgar Link	pending
lcii-20181231.htm	Edgar Link	pending
lcii-20181231.xsd	Edgar Link	pending
lcii-20181231_cal.xml	Edgar Link	unprocessable
lcii-20181231_def.xml	Edgar Link	unprocessable
lcii-20181231_g1.jpg	Edgar Link	pending
lcii-20181231_htm.xml	Edgar Link	completed
lcii-20181231_lab.xml	Edgar Link	unprocessable
lcii-20181231_pre.xml	Edgar Link	unprocessable
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$LCII
LCI INDUSTRIES Stock $lcii

2017 Q4 Form 10-K Financial Statement

#000076374419000018 Filed on February 27, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$LCII LCI INDUSTRIES Stock $lcii

2017 Q4 Form 10-K Financial Statement

#000076374419000018 Filed on February 27, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LCII
LCI INDUSTRIES Stock $lcii