$TNC
Tennant Co Stock $tnc

$tnc Overview Financials Valuation SEC Filings Company Website

2017 Form 10-K Financial Statement

#000009713418000009 Filed on February 28, 2018

Income Statement

Concept	2017	2016 Q4	2016 Q3
Revenue	$1.003B	$279.3M	$261.9M
YoY Change	24.06%	31.9%	30.87%
Cost Of Revenue	$603.3M	$118.2M	$114.8M
YoY Change	32.02%	-0.34%	-1.12%
Gross Profit	$399.8M	$115.5M	$104.6M
YoY Change	13.71%	23.55%	22.64%
Gross Profit Margin	39.86%	41.36%	39.94%
Selling, General & Admin	$334.8M	$60.90M	$60.62M
YoY Change	34.68%	-0.81%	-6.27%
% of Gross Profit	83.74%	52.71%	57.95%
Research & Development	$32.00M	$10.00M	$8.418M
YoY Change	-7.88%	23.46%	2.57%
% of Gross Profit	8.0%	8.66%	8.05%
Depreciation & Amortization	$26.20M	$4.800M	$4.600M
YoY Change	46.44%	2.13%	9.52%
% of Gross Profit	6.55%	4.15%	4.4%
Operating Expenses	$366.8M	$71.00M	$69.04M
YoY Change	29.46%	2.16%	-17.89%
Operating Profit	$33.00M	$44.53M	$16.25M
YoY Change	-51.66%	85.46%	255.67%
Interest Expense	$25.40M	-$800.0K	$329.0K
YoY Change	1885.93%	166.67%	53.02%
% of Operating Profit	76.97%	-1.8%	2.02%
Other Income/Expense, Net	-$34.30M	-$300.0K	-$381.0K
YoY Change	1833.48%	50.0%	-38.45%
Pretax Income	$7.500M	$21.50M	$15.87M
YoY Change	-86.12%	25.0%	301.75%
Income Tax	$4.900M	$6.100M	$4.396M
% Of Pretax Income	65.33%	28.37%	27.69%
Net Earnings	-$6.200M	-$3.206M	$3.559M
YoY Change	-113.3%	-120.86%	-68.99%
Net Earnings / Revenue	-0.62%	-1.15%	1.36%
Basic Earnings Per Share	-$0.35	-$0.18	$0.20
Diluted Earnings Per Share	-$0.35	-$0.18	$0.20
COMMON SHARES
Basic Shares Outstanding	17.70M shares	17.63M shares	17.50M shares
Diluted Shares Outstanding	17.70M shares		17.97M shares

Balance Sheet

Concept	2017	2016 Q4	2016 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$58.40M	$58.00M	$42.30M
YoY Change	0.69%	13.06%	-25.53%
Cash & Equivalents	$58.40M	$58.03M	$42.28M
Short-Term Investments
Other Short-Term Assets	$27.60M	$2.412M	$1.952M
YoY Change	128.1%	-2.94%	-19.27%
Inventory	$127.7M	$78.62M	$87.28M
Prepaid Expenses		$9.204M	$14.03M
Receivables	$203.3M	$145.3M	$135.5M
Other Receivables	$6.200M	$0.00	$0.00
Total Short-Term Assets	$423.1M	$297.9M	$281.6M
YoY Change	42.03%	1.46%	-9.0%
LONG-TERM ASSETS
Property, Plant & Equipment	$180.0M	$112.1M	$113.4M
YoY Change	60.57%	18.05%	29.16%
Goodwill		$21.07M	$24.67M
YoY Change		25.36%	46.65%
Intangibles		$6.460M	$2.887M
YoY Change		102.19%	-13.04%
Long-Term Investments
YoY Change
Other Assets	$32.50M	$19.05M	$17.36M
YoY Change	0.0%	63.64%	61.84%
Total Long-Term Assets	$570.9M	$172.1M	$171.5M
YoY Change	231.73%	24.14%	36.26%
TOTAL ASSETS
Total Short-Term Assets	$423.1M	$297.9M	$281.6M
Total Long-Term Assets	$570.9M	$172.1M	$171.5M
Total Assets	$994.0M	$470.0M	$453.1M
YoY Change	111.49%	8.73%	4.09%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$96.10M	$47.41M	$45.00M
YoY Change	102.74%	-5.84%	-17.28%
Accrued Expenses	$67.10M	$47.90M	$30.90M
YoY Change	40.08%	4.81%	-15.34%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$30.90M	$3.500M	$3.500M
YoY Change	782.86%	0.0%	2.94%
Total Short-Term Liabilities	$236.5M	$132.8M	$122.9M
YoY Change	78.09%	-0.29%	-11.89%
LONG-TERM LIABILITIES
Long-Term Debt	$346.0M	$32.70M	$32.70M
YoY Change	958.1%	54.25%	54.98%
Other Long-Term Liabilities	$59.80M	$4.625M	$4.556M
YoY Change	131.78%	11.04%	23.54%
Total Long-Term Liabilities	$405.8M	$58.67M	$57.96M
YoY Change	593.68%	25.16%	14.87%
TOTAL LIABILITIES
Total Short-Term Liabilities	$236.5M	$132.8M	$122.9M
Total Long-Term Liabilities	$405.8M	$58.67M	$57.96M
Total Liabilities	$697.5M	$191.5M	$180.9M
YoY Change	264.23%	6.33%	-4.78%
SHAREHOLDERS EQUITY
Retained Earnings		$318.2M	$306.5M
YoY Change		8.34%	6.28%
Common Stock		$6.633M	$6.611M
YoY Change		-0.32%	-1.17%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$296.5M	$278.5M	$272.2M
YoY Change
Total Liabilities & Shareholders Equity	$994.0M	$470.0M	$453.1M
YoY Change	111.49%	8.73%	4.09%

Cashflow Statement

Concept	2017	2016 Q4	2016 Q3
OPERATING ACTIVITIES
Net Income	-$6.200M	-$3.206M	$3.559M
YoY Change	-113.3%	-120.86%	-68.99%
Depreciation, Depletion And Amortization	$26.20M	$4.800M	$4.600M
YoY Change	46.44%	2.13%	9.52%
Cash From Operating Activities	$54.20M	$24.60M	$20.90M
YoY Change	-6.35%	72.03%	-13.99%
INVESTING ACTIVITIES
Capital Expenditures	$20.40M	-$4.000M	-$7.700M
YoY Change	-23.09%	-60.78%	10.0%
Acquisitions	$354.1M
YoY Change	2637.96%
Other Investing Activities	-$352.5M	-$2.500M	-$12.20M
YoY Change	2435.97%	-2600.0%	-1455.56%
Cash From Investing Activities	-$375.3M	-$6.500M	-$20.00M
YoY Change	825.32%	-35.64%	227.87%
FINANCING ACTIVITIES
Cash Dividend Paid	$15.00M
YoY Change	4.95%
Common Stock Issuance & Retirement, Net	-$6.900M
YoY Change	-192.11%
Debt Paid & Issued, Net	$96.25M
YoY Change	2681.73%
Cash From Financing Activities	$319.4M	-1.100M	13.30M
YoY Change	-3441.7%	-88.54%	-147.0%
NET CHANGE
Cash From Operating Activities	$54.20M	24.60M	20.90M
Cash From Investing Activities	-$375.3M	-6.500M	-20.00M
Cash From Financing Activities	$319.4M	-1.100M	13.30M
Net Change In Cash	$500.0K	17.00M	14.20M
YoY Change	-92.44%	-414.81%	-240.59%
FREE CASH FLOW
Cash From Operating Activities	$54.20M	$24.60M	$20.90M
Capital Expenditures	$20.40M	-$4.000M	-$7.700M
Free Cash Flow	$33.80M	$28.60M	$28.60M
YoY Change	7.81%	16.73%	-8.63%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0000097134
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17054000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	222092	shares
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	17881327	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	1292419327	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	Tennant Company
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2016Q4	tnc	Accumulated Depreciation Depletionand Amortization Property Plantand Equipmentpriorto Assets Heldfor Sale AccumulatedDepreciationDepletionandAmortizationPropertyPlantandEquipmentpriortoAssetsHeldforSale	186403000	USD
CY2017Q4	tnc	Accumulated Depreciation Depletionand Amortization Property Plantand Equipmentpriorto Assets Heldfor Sale AccumulatedDepreciationDepletionandAmortizationPropertyPlantandEquipmentpriortoAssetsHeldforSale	202750000	USD
CY2016	tnc	Accumulated Impairmentlosses Foreigncurrencyfluctuations AccumulatedImpairmentlossesForeigncurrencyfluctuations	-6312000	USD
CY2017	tnc	Accumulated Impairmentlosses Foreigncurrencyfluctuations AccumulatedImpairmentlossesForeigncurrencyfluctuations	-3848000	USD
CY2017Q4	tnc	Aggregate Residual Value At Lease Expiration For Vehicle Leases AggregateResidualValueAtLeaseExpirationForVehicleLeases	14052000	USD
CY2017Q1	tnc	Approximatetimeanticipatedsavingswilloffsettherestructuringcharge Approximatetimeanticipatedsavingswilloffsettherestructuringcharge	P1Y
CY2017Q4	tnc	Approximatetimeanticipatedsavingswilloffsettherestructuringcharge Approximatetimeanticipatedsavingswilloffsettherestructuringcharge	P1Y0M
CY2015	tnc	Classof Warrantsor Right Granted ClassofWarrantsorRightGranted	0	shares
CY2016	tnc	Classof Warrantsor Right Granted ClassofWarrantsorRightGranted	0	shares
CY2017	tnc	Classof Warrantsor Right Granted ClassofWarrantsorRightGranted	0	shares
CY2016Q4	tnc	Debt Instrument Unamortized Debt Issuance Costs Noncurrentnet DebtInstrumentUnamortizedDebtIssuanceCostsNoncurrentnet	0	USD
CY2017Q4	tnc	Debt Instrument Unamortized Debt Issuance Costs Noncurrentnet DebtInstrumentUnamortizedDebtIssuanceCostsNoncurrentnet	6440000	USD
CY2017Q4	tnc	Debt Weighted Average Interest Ratenetof Currency Swap Contract DebtWeightedAverageInterestRatenetofCurrencySwapContract	0.0424
CY2017	tnc	Defined Contribution Plan Minimum Service Period Required To Be Eligible For Profit Sharing Contribution DefinedContributionPlanMinimumServicePeriodRequiredToBeEligibleForProfitSharingContribution	1
CY2015	tnc	Disposal Group Not Discontinued Operation Amount Financedas Partof Selling Price DisposalGroupNotDiscontinuedOperationAmountFinancedasPartofSellingPrice	0	USD
CY2016	tnc	Disposal Group Not Discontinued Operation Amount Financedas Partof Selling Price DisposalGroupNotDiscontinuedOperationAmountFinancedasPartofSellingPrice	5489000	USD
CY2017	tnc	Disposal Group Not Discontinued Operation Amount Financedas Partof Selling Price DisposalGroupNotDiscontinuedOperationAmountFinancedasPartofSellingPrice	0	USD
CY2015	tnc	Effective Income Tax Rate Reconciliation Effect Of2018 Deferred Rate Change Percent EffectiveIncomeTaxRateReconciliationEffectOf2018DeferredRateChangePercent	0.000
CY2016	tnc	Effective Income Tax Rate Reconciliation Effect Of2018 Deferred Rate Change Percent EffectiveIncomeTaxRateReconciliationEffectOf2018DeferredRateChangePercent	0.000
CY2017	tnc	Effective Income Tax Rate Reconciliation Effect Of2018 Deferred Rate Change Percent EffectiveIncomeTaxRateReconciliationEffectOf2018DeferredRateChangePercent	-1.543
CY2017	tnc	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	1168000	USD
CY2015	tnc	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsPercent	0.000
CY2016	tnc	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsPercent	0.000
CY2017	tnc	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Transition Tax On Accumulated Foreign Earnings Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTaxOnAccumulatedForeignEarningsPercent	-0.280
CY2015	tnc	Effective Income Tax Rate Reconciliation Transaction Costs Percent EffectiveIncomeTaxRateReconciliationTransactionCostsPercent	0.000
CY2016	tnc	Effective Income Tax Rate Reconciliation Transaction Costs Percent EffectiveIncomeTaxRateReconciliationTransactionCostsPercent	0.000
CY2017	tnc	Effective Income Tax Rate Reconciliation Transaction Costs Percent EffectiveIncomeTaxRateReconciliationTransactionCostsPercent	-2.263
CY2015	tnc	Fair Value Step Up Adjustmentto Acquired Inventory FairValueStepUpAdjustmenttoAcquiredInventory	0	USD
CY2016	tnc	Fair Value Step Up Adjustmentto Acquired Inventory FairValueStepUpAdjustmenttoAcquiredInventory	0	USD
CY2017	tnc	Fair Value Step Up Adjustmentto Acquired Inventory FairValueStepUpAdjustmenttoAcquiredInventory	7245000	USD
CY2016Q4	tnc	Freight Current FreightCurrent	4274000	USD
CY2017Q4	tnc	Freight Current FreightCurrent	3208000	USD
CY2016	tnc	Goodwill Net Acquired During Period GoodwillNetAcquiredDuringPeriod	3787000	USD
CY2017	tnc	Goodwill Net Acquired During Period GoodwillNetAcquiredDuringPeriod	147845000	USD
CY2016	tnc	Goodwill Net Foreign Currency Fluctuations GoodwillNetForeignCurrencyFluctuations	475000	USD
CY2017	tnc	Goodwill Net Foreign Currency Fluctuations GoodwillNetForeignCurrencyFluctuations	18999000	USD
CY2017	tnc	Goodwill Purchase Accounting Adjustmentsnet GoodwillPurchaseAccountingAdjustmentsnet	-1865000	USD
CY2017	tnc	Increase Decreasein Equity Method Investments IncreaseDecreaseinEquityMethodInvestments	0	USD
CY2016	tnc	Increase Decreasein Subsidiary Equity IncreaseDecreaseinSubsidiaryEquity	0	USD
CY2017	tnc	Increase Decreasein Subsidiary Equity IncreaseDecreaseinSubsidiaryEquity	0	USD
CY2015	tnc	Intercompany Interest Income Expense IntercompanyInterestIncomeExpense	0	USD
CY2016	tnc	Intercompany Interest Income Expense IntercompanyInterestIncomeExpense	0	USD
CY2017	tnc	Intercompany Interest Income Expense IntercompanyInterestIncomeExpense	0	USD
CY2016Q4	tnc	Intercompany Loans Asset IntercompanyLoansAsset	0	USD
CY2017Q4	tnc	Intercompany Loans Asset IntercompanyLoansAsset	0	USD
CY2016Q4	tnc	Intercompany Loans Liability IntercompanyLoansLiability	0	USD
CY2017Q4	tnc	Intercompany Loans Liability IntercompanyLoansLiability	0	USD
CY2016Q4	tnc	Intercompany Payables IntercompanyPayables	0	USD
CY2017Q4	tnc	Intercompany Payables IntercompanyPayables	0	USD
CY2016Q4	tnc	Intercompany Receivables IntercompanyReceivables	0	USD
CY2017Q4	tnc	Intercompany Receivables IntercompanyReceivables	0	USD
CY2016Q4	tnc	Inventory Finished Goods Fifo InventoryFinishedGoodsFifo	31044000	USD
CY2017Q4	tnc	Inventory Finished Goods Fifo InventoryFinishedGoodsFifo	54161000	USD
CY2016Q4	tnc	Inventory Finished Goods Lifo InventoryFinishedGoodsLifo	39142000	USD
CY2017Q4	tnc	Inventory Finished Goods Lifo InventoryFinishedGoodsLifo	43439000	USD
CY2016Q4	tnc	Inventory Raw Materials Production Parts And Work In Process Fifo InventoryRawMaterialsProductionPartsAndWorkInProcessFifo	12646000	USD
CY2017Q4	tnc	Inventory Raw Materials Production Parts And Work In Process Fifo InventoryRawMaterialsProductionPartsAndWorkInProcessFifo	34829000	USD
CY2016Q4	tnc	Inventory Raw Materials Production Parts And Work In Process Lifo InventoryRawMaterialsProductionPartsAndWorkInProcessLifo	23980000	USD
CY2017Q4	tnc	Inventory Raw Materials Production Parts And Work In Process Lifo InventoryRawMaterialsProductionPartsAndWorkInProcessLifo	23694000	USD
CY2017	tnc	Machinewarrantyrangemaximum Machinewarrantyrangemaximum	P4Y
CY2017	tnc	Machinewarrantyrangeminimum Machinewarrantyrangeminimum	P1Y
CY2017Q4	tnc	Number Of Shares Authorized For Issue NumberOfSharesAuthorizedForIssue	60000000	shares
CY2017	tnc	Numberofcustomersexceedingtenpercentofnetsales Numberofcustomersexceedingtenpercentofnetsales	0
CY2017	tnc	Originationof Notes Receivablefrom Unrelated Parties OriginationofNotesReceivablefromUnrelatedParties	1500000	USD
CY2016	tnc	Proceedsfrom Repaymentsof Debtfrom Parent ProceedsfromRepaymentsofDebtfromParent	0	USD
CY2017	tnc	Proceedsfrom Repaymentsof Debtfrom Parent ProceedsfromRepaymentsofDebtfromParent	0	USD
CY2015	tnc	Proceedsfrom Repaymentsof Debtfrom Subsidiaries ProceedsfromRepaymentsofDebtfromSubsidiaries	0	USD
CY2016	tnc	Proceedsfrom Repaymentsof Debtfrom Subsidiaries ProceedsfromRepaymentsofDebtfromSubsidiaries	0	USD
CY2017	tnc	Proceedsfrom Repaymentsof Debtfrom Subsidiaries ProceedsfromRepaymentsofDebtfromSubsidiaries	0	USD
CY2016Q4	tnc	Rebates Current RebatesCurrent	11102000	USD
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CY2017	tnc	Restructuring Chargesnetofnoncashexpenses RestructuringChargesnetofnoncashexpenses	9558000	USD
CY2015	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateMaximum	0.012
CY2016	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateMaximum	0.015
CY2017	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateMaximum	0.013
CY2015	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateMinimum	0.011
CY2016	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateMinimum	0.013
CY2017	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateMinimum	0.012
CY2015	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Yield ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedYield	0.012
CY2016	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Yield ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedYield	0.013
CY2017	tnc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Yield ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedYield	0.013
CY2017Q4	tnc	Share Based Compensation Arrangement By Share Based Payment Award Number Of Plans ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlans	4
CY2017	tnc	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense	1993000	USD
CY2017	tnc	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	362000	USD
CY2017Q4	tnc	Total Minimum Obligations TotalMinimumObligations	383279000	USD
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	356598	shares
CY2016	tnc	Unrecognized Tax Benefits Increase Decrease Resultingfrom Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromForeignCurrencyTranslation	135000	USD
CY2017	tnc	Unrecognized Tax Benefits Increase Decrease Resultingfrom Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromForeignCurrencyTranslation	28000	USD
CY2016Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	149134000	USD
CY2017Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	209516000	USD
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CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	96082000	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	145299000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	203280000	USD
CY2016Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	7122000	USD
CY2017Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	14760000	USD
CY2016Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	2348000	USD
CY2017Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	2838000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	186403000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	202750000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	103000	USD
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CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-48129000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-49923000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-22323000	USD
CY2016Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3653000	USD
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	15089000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8222000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3875000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5891000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	859000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	686000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	2028000	USD
CY2015	us-gaap	Advertising Expense AdvertisingExpense	7418000	USD
CY2016	us-gaap	Advertising Expense AdvertisingExpense	7269000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	8228000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8222000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3875000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5891000	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	0	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	0	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1779000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1481000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	409000	USD
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	711212	shares
CY2016Q4	us-gaap	Assets Assets	470037000	USD
CY2017Q4	us-gaap	Assets Assets	993977000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	297922000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	423115000	USD
CY2017Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	159445000	USD
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1830000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2045000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2167000	USD
CY2016Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	0	USD
CY2017Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	1470000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	92962000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	51300000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	58033000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	58398000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-41662000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	6733000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	365000	USD
CY2017Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	0	shares
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.80
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.81
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.84
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2016Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2016Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2016Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2016Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.81
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.81
CY2017Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2017Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2017Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2017Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.84
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.84
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.375
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.375
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.375
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	17688350	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	17881177	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	17688350	shares
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44820000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	21405000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	17881177	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	6633000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	6705000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	22552000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-10000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	22552000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	44820000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	21395000	USD
CY2016	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.1
CY2015	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	462739000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	456977000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	598645000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15117000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15962000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2590000	USD
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3992000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3035000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8701000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	20794000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	20856000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	12103000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1685000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1859000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	812000	USD
CY2016Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	36194000	USD
CY2017Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	383279000	USD
CY2016Q4	us-gaap	Debt Current DebtCurrent	3459000	USD
CY2017Q4	us-gaap	Debt Current DebtCurrent	30883000	USD
CY2017Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0507
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-481000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-472000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1640000	USD
CY2015	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1888000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-434000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-8699000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2458000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-979000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7190000	USD
CY2015	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-1129000	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-1172000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-6095000	USD
CY2017Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	5815000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-89000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-73000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-131000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	31260000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	37092000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	332000	USD
CY2016Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	2366000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	4757000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	13268000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-42091000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	24395000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	27401000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	13439000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	11134000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	7821000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	11383000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2126000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3630000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1228000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1575000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	14723000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	11031000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1413000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	2138000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	3617000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	2578000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6865000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	9691000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	11127000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	69492000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	4180000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	60450000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	171000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	53225000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6947000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9042000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	12597000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	2427000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	9562000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	0	USD
CY2016Q4	us-gaap	Defined Benefit Plan Plans With Benefit Obligations In Excess Of Plan Assets Aggregate Benefit Obligation DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation	12794000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Plans With Benefit Obligations In Excess Of Plan Assets Aggregate Benefit Obligation DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation	2427000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Plans With Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	9562000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Plans With Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	0	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8098000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8359000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4404000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2015	us-gaap	Depreciation Depreciation	16550000	USD
CY2016	us-gaap	Depreciation Depreciation	17891000	USD
CY2017	us-gaap	Depreciation Depreciation	26199000	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	14498000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	14293000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	14953000	USD
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.22
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.15
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.35
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.74
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.22
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.15
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.59
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.35
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1908000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1144000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2142000	USD
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.364
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.299
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-3.802
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.015
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.019
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1.265
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.027
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.022
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.283
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.051
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.055
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.708
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.07
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	-0.017
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	-0.013
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.829
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.904
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.002
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.102
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.022
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.017
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.211
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	35997000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	37257000	USD
CY2016Q4	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	21134000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	23867000	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	859000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	686000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1168000	USD
CY2016Q4	us-gaap	Fifo Inventory Amount FIFOInventoryAmount	43690000	USD
CY2017Q4	us-gaap	Fifo Inventory Amount FIFOInventoryAmount	88990000	USD
CY2015	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	14636000	USD
CY2016	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	15490000	USD
CY2017	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	4230000	USD
CY2017	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P5Y
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8692000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	23565000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	73185000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	22345000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	16367000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	18561000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	20198000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	21691000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	15152000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	195912000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	172347000	USD
CY2015	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-954000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-392000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3387000	USD
CY2015	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	2104000	USD
CY2016	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	2601000	USD
CY2017	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	2000	USD
CY2015	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2016	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-149000	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2015Q4	us-gaap	Goodwill Goodwill	16803000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	21065000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	186044000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	3787000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	147845000	USD
CY2016	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-5837000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	22847000	USD
CY2015Q4	us-gaap	Goodwill Gross GoodwillGross	60447000	USD
CY2016Q4	us-gaap	Goodwill Gross GoodwillGross	58397000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	227224000	USD
CY2015Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	43644000	USD
CY2016Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	37332000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	41180000	USD
CY2017	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-1865000	USD
CY2015Q1	us-gaap	Gross Profit GrossProfit	77502000	USD
CY2015Q2	us-gaap	Gross Profit GrossProfit	95289000	USD
CY2015Q3	us-gaap	Gross Profit GrossProfit	85295000	USD
CY2015Q4	us-gaap	Gross Profit GrossProfit	93509000	USD
CY2015	us-gaap	Gross Profit GrossProfit	349060000	USD
CY2016Q1	us-gaap	Gross Profit GrossProfit	79736000	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	104554000	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	104604000	USD
CY2016Q4	us-gaap	Gross Profit GrossProfit	115527000	USD
CY2016	us-gaap	Gross Profit GrossProfit	351595000	USD
CY2017	us-gaap	Gross Profit GrossProfit	404421000	USD
CY2017Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	509000	USD
CY2017Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	11409000	USD
CY2015	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	11199000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	11199000	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2017	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	51189000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	54018000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	7465000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-765000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	12473000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-8757000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	50424000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	66491000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1292000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18336000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19877000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4913000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2355000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	23421000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	14172000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	13542000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-10455000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3904000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	10849000	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-4547000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9278000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	14381000	USD
CY2015	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-4283000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5427000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	285000	USD
CY2015	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-402000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-185000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	14560000	USD
CY2015	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	716000	USD
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	124000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-7780000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	10190000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-23000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2898000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	4101000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2218000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	495000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	322000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-116000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	92000	USD
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	478296	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	452916	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	6460000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	172347000	USD
CY2015	us-gaap	Interest Expense InterestExpense	1313000	USD
CY2016	us-gaap	Interest Expense InterestExpense	1279000	USD
CY2017	us-gaap	Interest Expense InterestExpense	25394000	USD
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-1141000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-949000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-22989000	USD
CY2015	us-gaap	Interest Paid InterestPaid	1167000	USD
CY2016	us-gaap	Interest Paid InterestPaid	1135000	USD
CY2017	us-gaap	Interest Paid InterestPaid	14228000	USD
CY2016Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	28190000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	330000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	2405000	USD
CY2016Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2017Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	28429000	USD
CY2016Q4	us-gaap	Inventory Net InventoryNet	78622000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	127694000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	172000	USD
CY2016Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	34932000	USD
CY2017Q4	us-gaap	Lifo Inventory Amount LIFOInventoryAmount	38704000	USD
CY2017	us-gaap	Lease Expiration Date1 LeaseExpirationDate1	2025-08-31
CY2017Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	4670000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	191494000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	695503000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	470037000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	993977000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	132829000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	236507000	USD
CY2016Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	58665000	USD
CY2017Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	458996000	USD
CY2017	us-gaap	Line Of Credit Facility Commitment Fee Amount LineOfCreditFacilityCommitmentFeeAmount	570000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	32735000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	345956000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	300000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	6609000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	46875000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	12006000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	9921000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	7868000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	0	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	1971000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-61405000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-9558000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	319473000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-23581000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-40443000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-375424000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	45232000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	57878000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	54174000	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	4439000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	15328000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	11477000	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	15370000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	32088000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	-3957000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	-2591000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	3559000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	-3206000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	46614000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-6195000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-10000	USD
CY2015Q4	us-gaap	Noncurrent Assets NoncurrentAssets	126600000	USD
CY2016Q4	us-gaap	Noncurrent Assets NoncurrentAssets	158677000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	559728000	USD
CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2752000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2007000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-28336000	USD
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1
CY2015	us-gaap	Operating Expenses OperatingExpenses	295884000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	283097000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	377377000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	53176000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	68498000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	27044000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	36931000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	14083000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1996000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	2995000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	5721000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	9540000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	2596000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	17804000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	18640000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	21566000	USD
CY2017Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	42597000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	4385000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	10779000	USD
CY2016Q4	us-gaap	Other Assets Current OtherAssetsCurrent	2412000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	7503000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	19054000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	21319000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	11947000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	164000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-305000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-7731000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	61000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-114000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-2884000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-12520000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	109000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	28356000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-25000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-32000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-310000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-9536000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1794000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	27600000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-9536000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1794000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	27600000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-4121000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	2248000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-5868000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-1265000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	504000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-2087000	USD
CY2016Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	43617000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	69447000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4625000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	35948000	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	100000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	345000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-364000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-657000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-666000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1960000	USD
CY2016Q4	us-gaap	Other Receivables OtherReceivables	3835000	USD
CY2017Q4	us-gaap	Other Receivables OtherReceivables	6236000	USD
CY2016Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	3014000	USD
CY2017Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	4476000	USD
CY2016	us-gaap	Payments For Advance To Affiliate PaymentsForAdvanceToAffiliate	2000000	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	45998000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	12762000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2017	us-gaap	Payments For Restructuring PaymentsForRestructuring	6312000	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	16482000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	14498000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	14293000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	14953000	USD
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	12933000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	354073000	USD
CY2015	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2016	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	2500000	USD
CY2016	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
CY2015	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2016	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	2000000	USD
CY2017	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	1500000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24780000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26526000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	20437000	USD
CY2015	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	30000	USD
CY2015	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	12428000	USD
CY2016	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	12108000	USD
CY2017	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	13253000	USD
CY2016Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	9204000	USD
CY2017Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	19351000	USD
CY2017	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	667000	USD
CY2015	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2016	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2017	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	667000	USD
CY2015	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	1185000	USD
CY2016	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	285000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1677000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	5271000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	6875000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	15000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	440000000	USD
CY2015	us-gaap	Proceeds From Long Term Capital Lease Obligations ProceedsFromLongTermCapitalLeaseObligations	0	USD
CY2016	us-gaap	Proceeds From Long Term Capital Lease Obligations ProceedsFromLongTermCapitalLeaseObligations	0	USD
CY2017	us-gaap	Proceeds From Long Term Capital Lease Obligations ProceedsFromLongTermCapitalLeaseObligations	311000	USD
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	336000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	615000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2511000	USD
CY2015	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2016	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2017	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	303000000	USD
CY2016Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	10960000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	12676000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	32088000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	46614000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	-6205000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	298500000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	382768000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	112097000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	180018000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1089000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	468000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1602000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-15653000	USD
CY2017	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	-311000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3445000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3460000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	96248000	USD
CY2016	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	3460000	USD
CY2017	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	96248000	USD
CY2015	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	0	USD
CY2016	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	0	USD
CY2017	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	303000000	USD
CY2015	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	32415000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	34738000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	32013000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	517000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	653000	USD
CY2017Q1	us-gaap	Restructuring Charges RestructuringCharges	8018000	USD
CY2017Q1	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	961000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	3436000	USD
CY2017	us-gaap	Restructuring Reserve Translation Adjustment RestructuringReserveTranslationAdjustment	190000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	318180000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	297032000	USD
CY2015Q1	us-gaap	Sales Revenue Net SalesRevenueNet	179864000	USD
CY2015Q2	us-gaap	Sales Revenue Net SalesRevenueNet	216828000	USD
CY2015Q3	us-gaap	Sales Revenue Net SalesRevenueNet	200134000	USD
CY2015Q4	us-gaap	Sales Revenue Net SalesRevenueNet	211746000	USD
CY2015	us-gaap	Sales Revenue Net SalesRevenueNet	811799000	USD
CY2016Q1	us-gaap	Sales Revenue Net SalesRevenueNet	191059000	USD
CY2016Q2	us-gaap	Sales Revenue Net SalesRevenueNet	270791000	USD
CY2016Q3	us-gaap	Sales Revenue Net SalesRevenueNet	261921000	USD
CY2016Q4	us-gaap	Sales Revenue Net SalesRevenueNet	279295000	USD
CY2016	us-gaap	Sales Revenue Net SalesRevenueNet	808572000	USD
CY2017	us-gaap	Sales Revenue Net SalesRevenueNet	1003066000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	252270000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	248210000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	345364000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	8222000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	3875000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	5891000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.36
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.32
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.26
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.32
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.29
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.25
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.016
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.014
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.020
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.014
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.011
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.017
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.36
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.32
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.26
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2015	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	23160	shares
CY2016	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	23113	shares
CY2017	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	16990	shares
CY2014Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	9686000	USD
CY2015Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	10093000	USD
CY2016Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	10960000	USD
CY2017Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12676000	USD
CY2015	us-gaap	Standard Product Warranty Accrual Additions From Business Acquisition StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
CY2016	us-gaap	Standard Product Warranty Accrual Additions From Business Acquisition StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition	42000	USD
CY2017	us-gaap	Standard Product Warranty Accrual Additions From Business Acquisition StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition	1208000	USD
CY2015	us-gaap	Standard Product Warranty Accrual Foreign Currency Translation Gain Loss StandardProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-207000	USD
CY2016	us-gaap	Standard Product Warranty Accrual Foreign Currency Translation Gain Loss StandardProductWarrantyAccrualForeignCurrencyTranslationGainLoss	82000	USD
CY2017	us-gaap	Standard Product Warranty Accrual Foreign Currency Translation Gain Loss StandardProductWarrantyAccrualForeignCurrencyTranslationGainLoss	274000	USD
CY2015	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	11105000	USD
CY2016	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	11670000	USD
CY2017	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	11890000	USD
CY2015	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	11719000	USD
CY2016	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	12413000	USD
CY2017	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	12124000	USD
CY2015	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1596000	USD
CY2016	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1786000	USD
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	681000	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	419000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4010000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5617000	USD
CY2017Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	1393965	shares
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	278543000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	296503000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	280651000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	252207000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	278543000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	298474000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	17000	USD
CY2016Q4	us-gaap	Supplemental Unemployment Benefits Severance Benefits SupplementalUnemploymentBenefitsSeveranceBenefits	394000	USD
CY2017Q4	us-gaap	Supplemental Unemployment Benefits Severance Benefits SupplementalUnemploymentBenefitsSeveranceBenefits	4267000	USD
CY2015	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	45998000	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	12762000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	30000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2326000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2477000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2232000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	6000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	68000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	490000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	482000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	545000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	329000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	236000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	523000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	770000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2114000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1992000	USD
CY2016Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	3108000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	3241000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18493447	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17976183	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17695390	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18015151	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17523267	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17695390	shares
CY2015	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2016	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2017	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	6200000	USD
CY2017	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:8px;padding-top:8px;text-align:justify;text-indent:24px;font-size:9pt;"><font style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;">Warranty</font><font style="font-family:Arial Narrow;font-size:9pt;"> – We record a liability for estimated warranty claims at the time of sale. The amount of the liability is based on the trend in the historical ratio of claims to sales, the historical length of time between the sale and resulting warranty claim, new product introductions and other factors. In the event we determine that our current or future product repair and replacement costs exceed our estimates, an adjustment to these reserves would be charged to earnings in the period such determination is made. Warranty terms on machines range from </font><font style="font-family:Arial Narrow;font-size:9pt;color:#000000;text-decoration:none;">one</font><font style="font-family:Arial Narrow;font-size:9pt;"> to </font><font style="font-family:Arial Narrow;font-size:9pt;color:#000000;text-decoration:none;">four</font><font style="font-family:Arial Narrow;font-size:9pt;"> years. However, the majority of our claims are paid out within the first six to nine months following a sale. The majority of the liability for estimated warranty claims represents amounts to be paid out in the near term for qualified warranty issues, with immaterial amounts reserved to be paid out for older equipment warranty issues.</font></div></div>
CY2017	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:8px;padding-top:8px;text-align:justify;text-indent:24px;font-size:9pt;"><font style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;">Nature of Operations</font><font style="font-family:Arial Narrow;font-size:9pt;"> – Tennant Company is a world leader in designing, manufacturing and marketing solutions that empower customers to achieve quality cleaning performance, significantly reduce environmental impact and help create a cleaner, safer, healthier world. Tennant offers products and solutions consisting of mechanized cleaning equipment, detergent-free and other sustainable cleaning technologies, aftermarket parts and consumables, equipment maintenance and repair service, specialty surface coatings, and business solutions such as financing, rental and leasing programs, and machine-to-machine asset management solutions. Tennant products are used in many types of environments including: Retail establishments, distribution centers, factories and warehouses, public venues such as arenas and stadiums, office buildings, schools and universities, hospitals and clinics, parking lots and streets, and more. Customers include contract cleaners to whom organizations outsource facilities maintenance, as well as businesses that perform facilities maintenance themselves. The Company reaches these customers through the industry's largest direct sales and service organization and through a strong and well-supported network of authorized distributors worldwide.</font></div><div style="line-height:120%;padding-bottom:8px;padding-top:8px;text-align:justify;text-indent:24px;font-size:9pt;"><font style="font-family:Arial Narrow;font-size:9pt;">In April 2017, the Company completed its acquisition of the IPC Group business. IPC manufactures a complete range of commercial cleaning products including mechanized cleaning equipment, wet & dry vacuum cleaners, cleaning tools & carts and high pressure washers. These products are sold into similar vertical market applications as those listed above, but also into office cleaning and hospitality vertical markets through a global direct sales and service organization and network of distributors. IPC markets products and services under the following valued brands: IPC, Gansow, Vaclensa, Portotecnica, Soteco and private-label brands.</font></div></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:8px;padding-top:8px;text-align:justify;text-indent:24px;font-size:9pt;"><font style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;">Use of Estimates</font><font style="font-family:Arial Narrow;font-size:9pt;"> – In preparing the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP"), management must make decisions that impact the reported amounts of assets, liabilities, revenues, expenses and the related disclosures, including disclosures of contingent assets and liabilities. Such decisions include the selection of the appropriate accounting principles to be applied and the assumptions on which to base accounting estimates. Estimates are used in determining, among other items, sales promotions and incentives accruals, inventory valuation, warranty reserves, allowance for doubtful accounts, pension and postretirement accruals, useful lives for intangible assets, and future cash flows associated with impairment testing for Goodwill and other long-lived assets. These estimates and assumptions are based on management’s best estimates and judgments. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors that management believes to be reasonable under the circumstances. We adjust such estimates and assumptions when facts and circumstances dictate. A number of these factors include, among others, economic conditions, credit markets, foreign currency, commodity cost volatility and consumer spending and confidence, all of which have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual amounts could differ significantly from those estimated at the time the consolidated financial statements are prepared. Changes in those estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.</font></div></div>

Files In Submission

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$TNC
Tennant Co Stock $tnc

2017 Form 10-K Financial Statement

#000009713418000009 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TNC Tennant Co Stock $tnc

2017 Form 10-K Financial Statement

#000009713418000009 Filed on February 28, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TNC
Tennant Co Stock $tnc