$SAM
BOSTON BEER CO INC Stock $sam

$sam Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000119312518052024 Filed on February 21, 2018

Income Statement

Concept	2017 Q4	2016 Q4	2016 Q3
Revenue	$206.3M	$219.4M	$253.4M
YoY Change	-5.96%	1.98%	-13.53%
Cost Of Revenue	$98.30M	$111.7M	$119.8M
YoY Change	-12.0%	4.98%	-11.95%
Gross Profit	$108.0M	$107.7M	$133.6M
YoY Change	0.31%	-0.98%	-14.91%
Gross Profit Margin	52.36%	49.09%	52.72%
Selling, General & Admin	$92.20M	$73.60M	$83.30M
YoY Change	25.27%	-10.68%	-13.15%
% of Gross Profit	85.34%	68.34%	62.35%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$12.90M	$12.30M	$12.80M
YoY Change	4.88%	8.85%	15.32%
% of Gross Profit	11.94%	11.42%	9.58%
Operating Expenses	$92.30M	$73.60M	$83.30M
YoY Change	25.41%	-10.68%	-13.35%
Operating Profit	$14.86M	$34.10M	$50.31M
YoY Change	-56.41%	29.47%	-17.36%
Interest Expense	$200.0K	$100.0K	$22.00K
YoY Change	100.0%
% of Operating Profit	1.35%	0.29%	0.04%
Other Income/Expense, Net	-$300.0K	-$100.0K	-$147.0K
YoY Change	200.0%	-75.0%	-72.11%
Pretax Income	$14.70M	$34.30M	$50.16M
YoY Change	-57.14%	31.92%	-16.89%
Income Tax	$4.500M	$12.20M	$18.63M
% Of Pretax Income	30.61%	35.57%	37.14%
Net Earnings	$30.53M	$22.20M	$31.53M
YoY Change	37.52%	37.76%	-18.37%
Net Earnings / Revenue	14.8%	10.12%	12.44%
Basic Earnings Per Share	$2.60		$2.53
Diluted Earnings Per Share	$2.57	$1.762M	$2.48
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding			12.64M shares

Balance Sheet

Concept	2017 Q4	2016 Q4	2016 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$65.60M	$91.00M	$77.30M
YoY Change	-27.91%	-3.4%	-42.57%
Cash & Equivalents	$65.64M	$91.04M	$77.27M
Short-Term Investments
Other Short-Term Assets	$10.70M	$8.700M	$18.80M
YoY Change	22.99%	-54.21%	-10.48%
Inventory	$50.65M	$52.50M	$57.23M
Prepaid Expenses	$1.819M	$1.644M
Receivables	$33.75M	$36.69M	$46.19M
Other Receivables	$7.700M	$4.900M	$5.000M
Total Short-Term Assets	$168.3M	$193.9M	$204.6M
YoY Change	-13.17%	-13.29%	-24.87%
LONG-TERM ASSETS
Property, Plant & Equipment	$384.3M	$408.4M	$410.6M
YoY Change	-5.91%	-0.37%	1.27%
Goodwill	$3.683M	$3.683M	$3.683M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$13.31M	$9.965M	$8.692M
YoY Change	33.6%	21.7%	-8.98%
Total Long-Term Assets	$401.3M	$422.1M	$422.9M
YoY Change	-4.92%	0.06%	1.03%
TOTAL ASSETS
Total Short-Term Assets	$168.3M	$193.9M	$204.6M
Total Long-Term Assets	$401.3M	$422.1M	$422.9M
Total Assets	$569.6M	$615.9M	$627.5M
YoY Change	-7.52%	-4.56%	-9.18%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$38.14M	$40.59M	$36.38M
YoY Change	-6.02%	-4.99%	-25.01%
Accrued Expenses	$63.60M	$60.90M	$69.80M
YoY Change	4.43%	103.0%	-17.2%
Deferred Revenue	$12.90M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due			$100.0K
YoY Change
Total Short-Term Liabilities	$101.8M	$101.5M	$106.3M
YoY Change	0.24%	-8.67%	-19.96%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$400.0K
YoY Change		-100.0%	-20.0%
Other Long-Term Liabilities	$9.524M	$10.58M	$9.751M
YoY Change	-10.02%	-36.04%	-37.09%
Total Long-Term Liabilities	$9.524M	$10.58M	$9.751M
YoY Change	-10.02%	-36.04%	-37.09%
TOTAL LIABILITIES
Total Short-Term Liabilities	$101.8M	$101.5M	$106.3M
Total Long-Term Liabilities	$9.524M	$10.58M	$9.751M
Total Liabilities	$146.1M	$169.4M	$177.3M
YoY Change	-13.74%	-8.04%	-9.62%
SHAREHOLDERS EQUITY
Retained Earnings	$52.11M	$97.65M	$102.1M
YoY Change	-46.64%	-43.21%	-51.56%
Common Stock	$372.6M	$349.9M	$349.1M
YoY Change	6.48%	20.62%	22.45%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$423.5M	$446.6M	$450.2M
YoY Change
Total Liabilities & Shareholders Equity	$569.6M	$615.9M	$627.5M
YoY Change	-7.52%	-4.56%	-9.18%

Cashflow Statement

Concept	2017 Q4	2016 Q4	2016 Q3
OPERATING ACTIVITIES
Net Income	$30.53M	$22.20M	$31.53M
YoY Change	37.52%	37.76%	-18.37%
Depreciation, Depletion And Amortization	$12.90M	$12.30M	$12.80M
YoY Change	4.88%	8.85%	15.32%
Cash From Operating Activities	$27.80M	$45.80M	$57.10M
YoY Change	-39.3%	74.81%	-10.92%
INVESTING ACTIVITIES
Capital Expenditures	-$9.600M	-$12.80M	-$11.10M
YoY Change	-25.0%	-30.81%	-33.53%
Acquisitions
YoY Change
Other Investing Activities	$100.0K	$3.800M	$0.00
YoY Change	-97.37%	-3900.0%
Cash From Investing Activities	-$9.500M	-$9.000M	-$11.10M
YoY Change	5.56%	-51.61%	-33.53%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-22.70M	-23.10M	3.800M
YoY Change	-1.73%	-51.98%	-106.35%
NET CHANGE
Cash From Operating Activities	27.80M	45.80M	57.10M
Cash From Investing Activities	-9.500M	-9.000M	-11.10M
Cash From Financing Activities	-22.70M	-23.10M	3.800M
Net Change In Cash	-4.400M	13.70M	49.80M
YoY Change	-132.12%	-133.83%	-501.61%
FREE CASH FLOW
Cash From Operating Activities	$27.80M	$45.80M	$57.10M
Capital Expenditures	-$9.600M	-$12.80M	-$11.10M
Free Cash Flow	$37.40M	$58.60M	$68.20M
YoY Change	-36.18%	31.1%	-15.59%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1164000
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	98414000
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CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	486000
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	94193000
CY2015Q4	sam	International Sales Percentage Of Sales InternationalSalesPercentageOfSales	0.04	pure
CY2015Q4	sam	Stock Repurchase Program Cumulative Shares Repurchased Value StockRepurchaseProgramCumulativeSharesRepurchasedValue	446092000
CY2015Q4	sam	Stock Repurchase Program Cumulative Number Of Shares Repurchased StockRepurchaseProgramCumulativeNumberOfSharesRepurchased	11538680	shares
CY2017Q3	dei	Entity Public Float EntityPublicFloat	1163800000
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1348233	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	141.98
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	64968	shares
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	500000
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	97648000
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CY2016Q4	us-gaap	Liabilities Liabilities	169364000
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	615946000
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	14116000
CY2016Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	5381000
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	74223000
CY2016Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	14300000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1103000
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CY2016Q4	sam	Kegs Kegs	70024000
CY2016Q4	sam	International Sales Percentage Of Sales InternationalSalesPercentageOfSales	0.04	pure
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CY2016Q4	sam	Stock Repurchase Program Cumulative Shares Repurchased Value StockRepurchaseProgramCumulativeSharesRepurchasedValue	607750000
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CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	33749000
CY2017Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	435000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4175000
CY2017Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	24307000
CY2017Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	438925000
CY2017Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	63800000
CY2017Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	1378000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	684148000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	340000
CY2017Q4	sam	Stock Repurchase Program Cumulative Number Of Shares Repurchased StockRepurchaseProgramCumulativeNumberOfSharesRepurchased	13447346	shares
CY2017Q4	sam	Defined Benefit Plan Basis Used To Determine Overall Expected Long Term Rate Of Returns On Assets Assumption DefinedBenefitPlanBasisUsedToDetermineOverallExpectedLongTermRateOfReturnsOnAssetsAssumption	0.065	pure
CY2017Q4	sam	Share Based Compensation Arrangement By Share Based Payment Award Expected Future Compensation Thereafter ShareBasedCompensationArrangementByShareBasedPaymentAwardExpectedFutureCompensationThereafter	1388000
CY2017Q4	sam	Share Based Compensation Arrangement By Share Based Payment Award Expected Future Compensation Year Three ShareBasedCompensationArrangementByShareBasedPaymentAwardExpectedFutureCompensationYearThree	3107000
CY2017Q4	us-gaap	Assets Assets	569624000
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	9692000
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	9253000
CY2017Q4	us-gaap	Goodwill Goodwill	3683000
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	7616000
CY2017Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	10739000
CY2017Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	33086000
CY2017Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	16660000
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	13313000
CY2017Q4	us-gaap	Prepaid Advertising PrepaidAdvertising	3328000
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	10695000
CY2017Q4	us-gaap	Prepaid Taxes PrepaidTaxes	1651000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	45877000
CY2017Q4	sam	Share Based Compensation Arrangement By Share Based Payment Award Expected Future Compensation Year Five ShareBasedCompensationArrangementByShareBasedPaymentAwardExpectedFutureCompensationYearFive	1992000
CY2017Q4	sam	Kegs Kegs	69049000
CY2017Q4	sam	Convertible Shares Exchange Ratio ConvertibleSharesExchangeRatio	1	shares
CY2017Q4	sam	International Sales Percentage Of Sales InternationalSalesPercentageOfSales	0.04	pure
CY2017Q4	sam	Debt To Earnings Before Interest Tax Depreciation And Amortization Ratio DebtToEarningsBeforeInterestTaxDepreciationAndAmortizationRatio	0.0000	pure
CY2017Q4	sam	Accrued Sales And Marketing Current AccruedSalesAndMarketingCurrent	13605000
CY2017Q4	sam	Share Based Compensation Arrangement By Share Based Payment Award Expected Future Compensation Year One ShareBasedCompensationArrangementByShareBasedPaymentAwardExpectedFutureCompensationYearOne	5519000
CY2017Q4	sam	Debt Instrument Interest Coverage Ratio DebtInstrumentInterestCoverageRatio	12639.00	pure
CY2017Q4	sam	Accrued Deposits Current AccruedDepositsCurrent	14224000
CY2017Q4	sam	Stock Repurchase Program Cumulative Shares Repurchased Value StockRepurchaseProgramCumulativeSharesRepurchasedValue	752352000
CY2017Q4	sam	Accrued Freight Costs Current AccruedFreightCostsCurrent	1518000
CY2017Q4	sam	Share Based Compensation Arrangement By Share Based Payment Award Expected Future Compensation Year Four ShareBasedCompensationArrangementByShareBasedPaymentAwardExpectedFutureCompensationYearFour	2618000
CY2017Q4	sam	Share Based Compensation Arrangement By Share Based Payment Award Expected Future Compensation Year Two ShareBasedCompensationArrangementByShareBasedPaymentAwardExpectedFutureCompensationYearTwo	4360000
CY2017Q4	sam	Debt To Earnings Before Interest Taxes Depreciation Amortization Ratio Maximum For Covenant Compliance DebtToEarningsBeforeInterestTaxesDepreciationAmortizationRatioMaximumForCovenantCompliance	2.50	pure
CY2017Q4	sam	Interest Coverage Ratio Minimum For Covenant Compliance InterestCoverageRatioMinimumForCovenantCompliance	2.00	pure
CY2017Q4	sam	Sales Tax Payable Current SalesTaxPayableCurrent	1873000
CY2017Q4	sam	Inventory Current And Noncurrent Net InventoryCurrentAndNoncurrentNet	60556000
CY2017Q4	sam	Supplier Rebates Current SupplierRebatesCurrent	1464000
CY2017Q4	sam	Allowance For Sales Returns Current AllowanceForSalesReturnsCurrent	3023000
CY2017Q4	sam	Variable Customer Promotional Discount Programs Expected Additional Liability Recorded Through Retained Earnings VariableCustomerPromotionalDiscountProgramsExpectedAdditionalLiabilityRecordedThroughRetainedEarnings	1300000
CY2017Q4	sam	Inventory On Hand And Inventory Under Purchase Commitment InventoryOnHandAndInventoryUnderPurchaseCommitment	170300000
CY2016Q4	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	125000	shares
CY2016Q4	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	45000	shares
CY2017Q4	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	79000	shares
CY2017Q1	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	100000	shares
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	15350000
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	168683000
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	15350000
CY2015	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	1024040000
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.25
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Discount For Postvesting Restrictions ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions	0.000	pure
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13520000	shares
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.034	pure
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	79.44
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00	pure
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0216	pure
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	128.54
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.46
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.027	pure
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.008	pure
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	397000	shares
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	25732	shares
CY2015	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	616747	shares
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.365	pure
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.342	pure
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	4100000
CY2015	us-gaap	Revenues Revenues	959934000
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	74187000
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	135705000
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	100000
CY2015	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	56000
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	156174000
CY2015	us-gaap	Net Income Loss NetIncomeLoss	98414000
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5155000
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2289000
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	98596000
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6665000
CY2015	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	54000
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	-99000
CY2015	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-22000
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-142000
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	45078000
CY2015	us-gaap	Gross Profit GrossProfit	501617000
CY2015	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-258000
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	58525000
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1220000
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	97966000
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-57000
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-11858000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	155010000
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6279000
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6986000
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	523000
CY2015	us-gaap	Depreciation Depreciation	43400000
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	42885000
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56596000
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	5985000
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-74230000
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	6665000
CY2015	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	100000
CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	258000
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	42391000
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	49794000
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	15350000
CY2015	us-gaap	Inventory Write Down InventoryWriteDown	4000000
CY2015	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	120100000
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-130000
CY2015	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	17252000
CY2015	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	273629000
CY2015	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	6802000
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	71556000
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	8732000
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-76662000
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-204000
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	37700000
CY2015	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-462000
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	17791000
CY2015	us-gaap	Cost Of Goods Sold CostOfGoodsSold	458317000
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7403000
CY2015	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	64106000
CY2015	us-gaap	Operating Expenses OperatingExpenses	345443000
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-43000
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	42339000
CY2015	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	62200000
CY2015	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	138705000
CY2015	sam	Decrease Increase In Accounts Payable For Purchase Of Property Plant And Equipment DecreaseIncreaseInAccountsPayableForPurchaseOfPropertyPlantAndEquipment	-1843000
CY2015	sam	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Factor ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExerciseFactor	3.00	Times
CY2015	sam	Weighted Average Number Of Basic Shares Outstanding Equity Instruments Other Than Option Nonvested WeightedAverageNumberOfBasicSharesOutstandingEquityInstrumentsOtherThanOptionNonvested	62000	shares
CY2015	sam	Loss On Sale Of Property Plant Equipment LossOnSaleOfPropertyPlantEquipment	515000
CY2015	sam	Increase Decrease In Accrued Expenses Taxes And Other Current Liabilities IncreaseDecreaseInAccruedExpensesTaxesAndOtherCurrentLiabilities	-9014000
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0000949870
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2015	sam	Decrease Increase In Accounts Payable For Repurchase Of Common Stock DecreaseIncreaseInAccountsPayableForRepurchaseOfCommonStock	3000000
CY2015	sam	Weighted Average Number Of Shares Outstanding Basic Including Nonvested Participating Securities WeightedAverageNumberOfSharesOutstandingBasicIncludingNonvestedParticipatingSecurities	13185000	shares
CY2015	sam	Number Of Customers Accounted For More Than Ten Percent Of Revenue NumberOfCustomersAccountedForMoreThanTenPercentOfRevenue	0	Customer
CY2015	sam	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Estimated Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsEstimatedForfeitureRate	0.050	pure
CY2015	sam	Income Allocated To Equity Instruments Other Than Option Nonvested IncomeAllocatedToEquityInstrumentsOtherThanOptionNonvested	14000
CY2015	sam	Provision For Recovery Of Doubtful Accounts ProvisionForRecoveryOfDoubtfulAccounts	165000
CY2015	sam	Net Proceeds From Sale Of Investment Shares NetProceedsFromSaleOfInvestmentShares	1408000
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Type DocumentType	10-K
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.09
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	135982000
CY2017	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	-1000000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y3M11D
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	79.78
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Discount For Postvesting Restrictions ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions	0.000	pure
CY2017	dei	Trading Symbol TradingSymbol	SAM
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	12180000	shares
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div> <p style="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"> <b><i>Concentrations of Credit Risk</i></b></p> <p style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"> Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash equivalents and trade receivables. The Company places its cash equivalents with high credit quality financial institutions. As of December 30, 2017, the Company’s cash and cash equivalents were invested in investment-grade, highly-liquid U.S. government agency corporate money market accounts.</p> <p style="font-size:1px;margin-top:12px;margin-bottom:0px">  </p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"> The Company sells primarily to a network of independent wholesalers in the United States and to a network of foreign wholesalers, importers or other agencies (collectively referred to as “Distributors”). In 2017, 2016 and 2015, sales to foreign Distributors were approximately 4% of total sales. Receivables arising from these sales are not collateralized; however, credit risk is minimized as a result of the large and diverse nature of the Company’s customer base. There were no individual customer accounts receivable balances outstanding at December 30, 2017 and December 31, 2016 that were in excess of 10% of the gross accounts receivable balance on those dates. No individual customers represented more than 10% of the Company’s revenues during fiscal years 2017, 2016, and 2015.</p> </div>
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.036	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.032	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005	pure
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-30
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	145000	shares
CY2017	us-gaap	Line Of Credit Facility Commitment Fee Percentage LineOfCreditFacilityCommitmentFeePercentage	0.0015	pure
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	22213	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	178.56
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	132.88
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	6296	shares
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	151.32
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	160.47
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	150.10
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	194401	shares
CY2017	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	963790	shares
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 18pt"> <b><i>Use of Estimates</i></b></p> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 6pt"> The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.</p> </div>
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00	pure
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0230	pure
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y6M29D
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	12208	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	72.52
CY2017	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Period Increase Decrease AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentPeriodIncreaseDecrease	-1000000
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-30
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.18
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.175	pure
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.147	pure
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	0.037	pure
CY2017	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y9M3D
CY2017	dei	Entity Registrant Name EntityRegistrantName	BOSTON BEER CO INC
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	us-gaap	Fiscal Period FiscalPeriod	<div> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 6pt"> <b><i>Fiscal Year</i></b></p> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 6pt"> The Company’s fiscal year is a <font style="WHITE-SPACE: nowrap">fifty-two</font> or fifty-three week period ending on the last Saturday in December. The fiscal period 2017 consists of <font style="WHITE-SPACE: nowrap">fifty-two</font> weeks, the fiscal period 2016 consists of fifty-three weeks and the fiscal period 2015 consists of <font style="WHITE-SPACE: nowrap">fifty-two</font> weeks.</p> </div>
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	151.32
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.362	pure
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	15415000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	15373	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	25946	shares
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P4Y5M27D
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	22213	shares
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	300000
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	2900000
CY2017	us-gaap	Revenues Revenues	862992000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	32987000
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	144602000
CY2017	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	549000
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	4400000
CY2017	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	921736000
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	115675000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	99049000
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1741000
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2945000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	98864000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6316000
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	64000
CY2017	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	60000
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	-57000
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	17000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	68000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	43006000
CY2017	us-gaap	Gross Profit GrossProfit	449901000
CY2017	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-2451000
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	16363000
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-82000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-32000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-185000
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	467000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	99049000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	98512000
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-33000
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4511000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	116142000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-22489000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-22442000
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	102000
CY2017	us-gaap	Depreciation Depreciation	51200000
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	51256000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17093000
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	245000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-32929000
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	25000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	6316000
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	62000
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	40000
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2451000
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	34255000
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	39480000
CY2017	us-gaap	Inventory Write Down InventoryWriteDown	5800000
CY2017	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	128000000
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	170000
CY2017	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	258649000
CY2017	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-22387000
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	73126000
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1021000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-128451000
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	202000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	14900000
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-544000
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-25398000
CY2017	us-gaap	Cost Of Goods Sold CostOfGoodsSold	413091000
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5225000
CY2017	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	58744000
CY2017	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-1000000
CY2017	us-gaap	Operating Expenses OperatingExpenses	334226000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	11000
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	41498000
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	12524000
CY2017	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	45300000
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	144602000
CY2017	sam	Decrease Increase In Accounts Payable For Purchase Of Property Plant And Equipment DecreaseIncreaseInAccountsPayableForPurchaseOfPropertyPlantAndEquipment	-2689000
CY2017	sam	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Factor ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExerciseFactor	3.63	Times
CY2017	sam	Weighted Average Number Of Basic Shares Outstanding Equity Instruments Other Than Option Nonvested WeightedAverageNumberOfBasicSharesOutstandingEquityInstrumentsOtherThanOptionNonvested	67000	shares
CY2017	sam	Defined Benefit Plan Unfunded Status Of Plan DefinedBenefitPlanUnfundedStatusOfPlan	2200000
CY2017	sam	Loss On Sale Of Property Plant Equipment LossOnSaleOfPropertyPlantEquipment	764000
CY2017	sam	Income Allocated To Equity Instruments Other Than Option Nonvested IncomeAllocatedToEquityInstrumentsOtherThanOptionNonvested	7000
CY2017	sam	Increase Decrease In Accrued Expenses Taxes And Other Current Liabilities IncreaseDecreaseInAccruedExpensesTaxesAndOtherCurrentLiabilities	-2671000
CY2017	sam	Number Of Customers Accounted For More Than Ten Percent Of Accounts Receivable NumberOfCustomersAccountedForMoreThanTenPercentOfAccountsReceivable	0	Customer
CY2017	sam	Weighted Average Number Of Shares Outstanding Basic Including Nonvested Participating Securities WeightedAverageNumberOfSharesOutstandingBasicIncludingNonvestedParticipatingSecurities	12102000	shares
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.363	pure
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.340	pure
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	9900000
CY2016	us-gaap	Revenues Revenues	906446000
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	49913000
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	164658000
CY2017	sam	Deferred Tax Assets Capital Loss Carryforwards Expiration Year DeferredTaxAssetsCapitalLossCarryforwardsExpirationYear	2019
CY2017	sam	Number Of Customers Accounted For More Than Ten Percent Of Revenue NumberOfCustomersAccountedForMoreThanTenPercentOfRevenue	0	Customer
CY2017	sam	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Estimated Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsEstimatedForfeitureRate	0.050	pure
CY2017	sam	Increase Decrease In Deferred Tax Liabilities IncreaseDecreaseInDeferredTaxLiabilities	-25000000
CY2017	sam	Unrecognized Tax Benefits Increase Decrease Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromPriorPeriodTaxPositions	-259000
CY2017	sam	Net Proceeds From Sale Of Investment Shares NetProceedsFromSaleOfInvestmentShares	796000
CY2017	sam	Increase Decrease In Deferred Tax Assets IncreaseDecreaseInDeferredTaxAssets	-4700000
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.79
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.003	pure
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	154189000
CY2016	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	-1400000
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Discount For Postvesting Restrictions ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions	0.000	pure
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	12796000	shares
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.036	pure
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	114.12
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00	pure
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0216	pure
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	87.70
CY2016	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Period Increase Decrease AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentPeriodIncreaseDecrease	-1400000
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.93
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.026	pure
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006	pure
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	263000	shares
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	19740	shares
CY2016	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	944876	shares
CY2016	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	168000
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	12524000
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	12524000
CY2016	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	968994000
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	137659000
CY2016	us-gaap	Net Income Loss NetIncomeLoss	87349000
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-445000
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2534000
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	87197000
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6148000
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	80000
CY2016	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	58000
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	-69000
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-99000
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	32000
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	30978000
CY2016	us-gaap	Gross Profit GrossProfit	459670000
CY2016	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	235000
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	53674000
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-706000
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-175000
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-152000
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-538000
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	87349000
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	86916000
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-40000
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-14936000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	137121000
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7666000
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8243000
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	608000
CY2016	us-gaap	Depreciation Depreciation	49300000
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49557000
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49772000
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1811000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-46018000
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3855000
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	6148000
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	50000
CY2016	us-gaap	Inventory Write Down InventoryWriteDown	4500000
CY2016	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	105300000
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-122000
CY2016	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	12064000
CY2016	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	244213000
CY2016	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	8274000
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	78033000
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-6304000
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-111329000
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	53000
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	52700000
CY2016	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	-442000
CY2016	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3000
CY2016	us-gaap	Asset Impairment Charges AssetImpairmentCharges	716000
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	35390000
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-3158000
CY2016	us-gaap	Cost Of Goods Sold CostOfGoodsSold	446776000
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6108000
CY2016	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	62548000
CY2016	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-1100000
CY2016	us-gaap	Operating Expenses OperatingExpenses	322011000
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	101000
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40127000
CY2016	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	49200000
CY2016	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	161658000
CY2016	sam	Decrease Increase In Accounts Payable For Purchase Of Property Plant And Equipment DecreaseIncreaseInAccountsPayableForPurchaseOfPropertyPlantAndEquipment	2678000
CY2016	sam	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Factor ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExerciseFactor	2.68	Times
CY2016	sam	Weighted Average Number Of Basic Shares Outstanding Equity Instruments Other Than Option Nonvested WeightedAverageNumberOfBasicSharesOutstandingEquityInstrumentsOtherThanOptionNonvested	64000	shares
CY2016	sam	Defined Benefit Plan Unfunded Status Of Plan DefinedBenefitPlanUnfundedStatusOfPlan	1900000
CY2016	sam	Gain On Sale Of Property Plant Equipment GainOnSaleOfPropertyPlantEquipment	951000
CY2016	sam	Loss On Sale Of Property Plant Equipment LossOnSaleOfPropertyPlantEquipment	616000
CY2016	sam	Increase Decrease In Accrued Expenses Taxes And Other Current Liabilities IncreaseDecreaseInAccruedExpensesTaxesAndOtherCurrentLiabilities	-5479000
CY2016	sam	Decrease Increase In Accounts Payable For Repurchase Of Common Stock DecreaseIncreaseInAccountsPayableForRepurchaseOfCommonStock	-3000000
CY2016	sam	Number Of Customers Accounted For More Than Ten Percent Of Accounts Receivable NumberOfCustomersAccountedForMoreThanTenPercentOfAccountsReceivable	0	Customer
CY2016	sam	Weighted Average Number Of Shares Outstanding Basic Including Nonvested Participating Securities WeightedAverageNumberOfSharesOutstandingBasicIncludingNonvestedParticipatingSecurities	12597000	shares
CY2016	sam	Number Of Customers Accounted For More Than Ten Percent Of Revenue NumberOfCustomersAccountedForMoreThanTenPercentOfRevenue	0	Customer
CY2016	sam	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Estimated Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsEstimatedForfeitureRate	0.050	pure
CY2016	sam	Unrecognized Tax Benefits Increase Decrease Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromPriorPeriodTaxPositions	76000
CY2016	sam	Income Allocated To Equity Instruments Other Than Option Nonvested IncomeAllocatedToEquityInstrumentsOtherThanOptionNonvested	9000
CY2016	sam	Provision For Recovery Of Doubtful Accounts ProvisionForRecoveryOfDoubtfulAccounts	-244000
CY2016	sam	Net Proceeds From Sale Of Investment Shares NetProceedsFromSaleOfInvestmentShares	736000
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2016Q1	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	188827000
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	11237000
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	7032000
CY2016Q1	us-gaap	Gross Profit GrossProfit	91531000
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2017Q2	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	161695000
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	4028000
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	5711000
CY2017Q2	us-gaap	Gross Profit GrossProfit	76344000
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.06
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.11
CY2016Q2	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	244816000
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	41788000
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	26621000
CY2016Q2	us-gaap	Gross Profit GrossProfit	126876000
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.35
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.38
CY2017Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	247930000
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	45288000
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	29125000
CY2017Q3	us-gaap	Gross Profit GrossProfit	134019000
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.48
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.53
CY2016Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	253433000
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	50309000
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	31530000
CY2016Q3	us-gaap	Gross Profit GrossProfit	133607000
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.78
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.82
CY2017Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	247047000
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	51496000
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	33683000
CY2017Q3	us-gaap	Gross Profit GrossProfit	131501000
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.57
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.60
CY2017Q4	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	206320000
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	14863000
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	30530000
CY2017Q4	us-gaap	Gross Profit GrossProfit	108037000
CY2017Q4	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-22442000
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.75
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.77
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	219370000
	us-gaap	Operating Income Loss OperatingIncomeLoss	34325000
	us-gaap	Net Income Loss NetIncomeLoss	22166000
	us-gaap	Gross Profit GrossProfit	107656000

Files In Submission

Name	View Source	Status
0001193125-18-052024-index-headers.html	Edgar Link	pending
0001193125-18-052024-index.html	Edgar Link	pending
0001193125-18-052024.txt	Edgar Link	pending
0001193125-18-052024-xbrl.zip	Edgar Link	pending
d518850d10k.htm	Edgar Link	pending
d518850dex215.htm	Edgar Link	pending
d518850dex231.htm	Edgar Link	pending
d518850dex311.htm	Edgar Link	pending
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d518850dex321.htm	Edgar Link	pending
d518850dex322.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
g518850g99z39.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
sam-20171230.xml	Edgar Link	completed
sam-20171230.xsd	Edgar Link	pending
sam-20171230_cal.xml	Edgar Link	unprocessable
sam-20171230_def.xml	Edgar Link	unprocessable
sam-20171230_lab.xml	Edgar Link	unprocessable
sam-20171230_pre.xml	Edgar Link	unprocessable
Show.js	Edgar Link	pending

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$SAM
BOSTON BEER CO INC Stock $sam

2017 Q4 Form 10-K Financial Statement

#000119312518052024 Filed on February 21, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SAM BOSTON BEER CO INC Stock $sam

2017 Q4 Form 10-K Financial Statement

#000119312518052024 Filed on February 21, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SAM
BOSTON BEER CO INC Stock $sam