$FORM
FORMFACTOR INC Stock $form

$form Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000103939918000014 Filed on February 27, 2018

Income Statement

Concept	2017 Q4	2017	2016 Q4
Revenue	$131.9M	$548.4M	$123.9M
YoY Change	6.46%	42.87%	72.61%
Cost Of Revenue	$83.27M	$332.8M	$83.60M
YoY Change	-0.39%	18.37%	65.25%
Gross Profit	$48.63M	$215.6M	$40.30M
YoY Change	20.67%	109.97%	90.18%
Gross Profit Margin	36.87%	39.31%	32.53%
Selling, General & Admin	$24.24M	$95.49M	$22.00M
YoY Change	10.17%	30.02%	105.24%
% of Gross Profit	49.84%	44.29%	54.59%
Research & Development	$18.51M	$73.81M	$18.20M
YoY Change	1.72%	28.47%	61.98%
% of Gross Profit	38.07%	34.23%	45.16%
Depreciation & Amortization	$11.00M	$13.63M	$13.20M
YoY Change	-16.67%	-70.88%	123.73%
% of Gross Profit	22.62%	6.32%	32.75%
Operating Expenses	$43.23M	$169.3M	$42.10M
YoY Change	2.69%	12.42%	91.78%
Operating Profit	$5.397M	$46.30M	-$1.800M
YoY Change	-399.83%	-196.65%	136.53%
Interest Expense	$1.045M	$4.491M	$2.100M
YoY Change	-50.24%	87.83%
% of Operating Profit	19.36%	9.7%
Other Income/Expense, Net	-$170.0K	-$152.0K	-$3.000M
YoY Change	-94.33%	-32.14%	8233.33%
Pretax Income	$4.446M	$31.49M	-$15.40M
YoY Change	-128.87%	-161.81%	2018.29%
Income Tax	-$1.142M	$1.293M	$0.00
% Of Pretax Income	-25.69%	4.11%
Net Earnings	$5.588M	$40.91M	-$15.40M
YoY Change	-136.29%	-723.96%	2387.88%
Net Earnings / Revenue	4.24%	7.46%	-12.43%
Basic Earnings Per Share	$0.08	$0.57
Diluted Earnings Per Share	$0.07	$0.55	-$216.0K
COMMON SHARES
Basic Shares Outstanding	72.85M shares	72.29M shares	70.75M shares
Diluted Shares Outstanding	74.76M shares	74.24M shares

Balance Sheet

Concept	2017 Q4	2017	2016 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$140.2M	$140.2M	$123.6M
YoY Change	13.44%	28.74%	-34.13%
Cash & Equivalents	$91.18M	$91.20M	$101.4M
Short-Term Investments	$48.99M	$49.00M	$22.16M
Other Short-Term Assets	$14.10M	$14.10M	$14.40M
YoY Change	-2.08%	-2.08%	121.54%
Inventory	$67.85M	$67.80M	$59.81M
Prepaid Expenses
Receivables	$81.52M	$81.50M	$70.23M
Other Receivables	$2.300M	$2.300M	$1.400M
Total Short-Term Assets	$305.9M	$305.9M	$254.7M
YoY Change	20.08%	20.1%	-1.28%
LONG-TERM ASSETS
Property, Plant & Equipment	$46.75M	$46.80M	$42.66M
YoY Change	9.59%	9.6%	78.86%
Goodwill	$189.9M		$188.0M
YoY Change	1.02%		511.79%
Intangibles	$97.48M		$126.6M
YoY Change	-23.0%		395.49%
Long-Term Investments
YoY Change
Other Assets	$2.259M	$6.600M	$2.600M
YoY Change	-13.12%	-5.71%	204.81%
Total Long-Term Assets	$340.7M	$340.7M	$364.3M
YoY Change	-6.47%	-6.48%	330.05%
TOTAL ASSETS
Total Short-Term Assets	$305.9M	$305.9M	$254.7M
Total Long-Term Assets	$340.7M	$340.7M	$364.3M
Total Assets	$646.6M	$646.6M	$619.0M
YoY Change	4.46%	4.46%	80.61%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$35.05M	$35.00M	$34.08M
YoY Change	2.85%	2.64%	88.55%
Accrued Expenses	$33.69M	$32.90M	$30.18M
YoY Change	11.63%	9.67%	40.35%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$18.44M	$18.40M	$12.70M
YoY Change	45.21%	44.88%
Total Short-Term Liabilities	$92.16M	$92.20M	$82.71M
YoY Change	11.43%	11.49%	89.78%
LONG-TERM LIABILITIES
Long-Term Debt	$87.23M	$87.20M	$125.5M
YoY Change	-30.48%	-30.52%
Other Long-Term Liabilities	$5.200M	$5.200M	$6.000M
YoY Change	-13.33%	-13.33%	33.33%
Total Long-Term Liabilities	$87.23M	$92.40M	$125.5M
YoY Change	-30.48%	-29.73%
TOTAL LIABILITIES
Total Short-Term Liabilities	$92.16M	$92.20M	$82.71M
Total Long-Term Liabilities	$87.23M	$92.40M	$125.5M
Total Liabilities	$187.9M	$187.9M	$217.9M
YoY Change	-13.76%	-13.77%	353.62%
SHAREHOLDERS EQUITY
Retained Earnings	-$387.6M		-$428.6M
YoY Change	-9.58%		1.55%
Common Stock	$843.2M		$833.4M
YoY Change	1.17%		15.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$458.6M	$458.6M	$401.1M
YoY Change
Total Liabilities & Shareholders Equity	$646.6M	$646.6M	$619.0M
YoY Change	4.46%	4.46%	80.61%

Cashflow Statement

Concept	2017 Q4	2017	2016 Q4
OPERATING ACTIVITIES
Net Income	$5.588M	$40.91M	-$15.40M
YoY Change	-136.29%	-723.96%	2387.88%
Depreciation, Depletion And Amortization	$11.00M	$13.63M	$13.20M
YoY Change	-16.67%	-70.88%	123.73%
Cash From Operating Activities	$26.40M	$86.32M	$14.90M
YoY Change	77.18%	396.11%	115.94%
INVESTING ACTIVITIES
Capital Expenditures	-$3.900M	$17.76M	-$3.300M
YoY Change	18.18%	54.12%	65.0%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	-$17.40M	-$41.70M	-$700.0K
YoY Change	2385.71%	-78.51%	-333.33%
Cash From Investing Activities	-$21.20M	-$59.43M	-$3.900M
YoY Change	443.59%	-71.08%	129.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$19.00M
YoY Change
Debt Paid & Issued, Net		$33.13M
YoY Change		211.76%
Cash From Financing Activities	-16.70M	-$39.47M	-7.000M
YoY Change	138.57%	-127.49%	483.33%
NET CHANGE
Cash From Operating Activities	26.40M	$86.32M	14.90M
Cash From Investing Activities	-21.20M	-$59.43M	-3.900M
Cash From Financing Activities	-16.70M	-$39.47M	-7.000M
Net Change In Cash	-11.50M	-$9.870M	4.000M
YoY Change	-387.5%	-77.82%	0.0%
FREE CASH FLOW
Cash From Operating Activities	$26.40M	$86.32M	$14.90M
Capital Expenditures	-$3.900M	$17.76M	-$3.300M
Free Cash Flow	$30.30M	$68.57M	$18.20M
YoY Change	66.48%	1066.3%	104.49%

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	--12-30
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-30
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001039399
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	72950475	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	637498421	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	FORMFACTOR INC.
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2015	form	Acquired Inventory Stepup Amortization AcquiredInventoryStepupAmortization	0	USD
CY2016	form	Acquired Inventory Stepup Amortization AcquiredInventoryStepupAmortization	10022000	USD
CY2017	form	Acquired Inventory Stepup Amortization AcquiredInventoryStepupAmortization	569000	USD
CY2015	form	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	361000	USD
CY2016	form	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	-732000	USD
CY2017	form	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	-33000	USD
CY2016Q2	form	Debt Instrument Debtto Earnings Ratio In Year Two And Thereafter DebtInstrumentDebttoEarningsRatioInYearTwoAndThereafter	2.50
CY2015	form	Deferred Income Tax Expense Benefit Total DeferredIncomeTaxExpenseBenefitTotal	-15000	USD
CY2016	form	Deferred Income Tax Expense Benefit Total DeferredIncomeTaxExpenseBenefitTotal	-45562000	USD
CY2017	form	Deferred Income Tax Expense Benefit Total DeferredIncomeTaxExpenseBenefitTotal	-663000	USD
CY2016Q4	form	Deferred Tax Liabilities Acquired Intangibles And Fixed Assets DeferredTaxLiabilitiesAcquiredIntangiblesAndFixedAssets	39801000	USD
CY2017Q4	form	Deferred Tax Liabilities Acquired Intangibles And Fixed Assets DeferredTaxLiabilitiesAcquiredIntangiblesAndFixedAssets	18921000	USD
CY2017Q4	form	Finite Lived Intangible Assets Amortization Expense Total FiniteLivedIntangibleAssetsAmortizationExpenseTotal	97484000	USD
CY2015	form	Gross Margin Percent GrossMarginPercent	0.304
CY2016	form	Gross Margin Percent GrossMarginPercent	0.267
CY2017	form	Gross Margin Percent GrossMarginPercent	0.393
CY2016	form	Impairment Of Long Lived Assets Held For Sale ImpairmentOfLongLivedAssetsHeldForSale	0	USD
CY2017	form	Impairment Of Long Lived Assets Held For Sale ImpairmentOfLongLivedAssetsHeldForSale	0	USD
CY2017Q4	form	Longterm Debt Maturities Interest Payments LongtermDebtMaturitiesInterestPayments	6265000	USD
CY2017Q4	form	Longterm Debt Maturities Payments Of Interest In Next Twelve Months LongtermDebtMaturitiesPaymentsOfInterestInNextTwelveMonths	3085000	USD
CY2017Q4	form	Longterm Debt Maturities Payments Of Interest In Year Four LongtermDebtMaturitiesPaymentsOfInterestInYearFour	4000	USD
CY2017Q4	form	Longterm Debt Maturities Payments Of Interest In Year Three LongtermDebtMaturitiesPaymentsOfInterestInYearThree	840000	USD
CY2017Q4	form	Longterm Debt Maturities Payments Of Interest In Year Two LongtermDebtMaturitiesPaymentsOfInterestInYearTwo	2336000	USD
CY2016Q2	form	Minimum Fixed Charge Coverage Ratioin Year Fourand Thereafter MinimumFixedChargeCoverageRatioinYearFourandThereafter	1.20
CY2015	form	Noncashor Part Noncash Acquisition Valueof Equity Awards Assumed NoncashorPartNoncashAcquisitionValueofEquityAwardsAssumed	0	USD
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CY2017	form	Noncashor Part Noncash Acquisition Valueof Equity Awards Assumed NoncashorPartNoncashAcquisitionValueofEquityAwardsAssumed	0	USD
CY2015	form	Noncashor Part Noncash Acquisition Valueof Equity Awards Paid NoncashorPartNoncashAcquisitionValueofEquityAwardsPaid	0	USD
CY2016	form	Noncashor Part Noncash Acquisition Valueof Equity Awards Paid NoncashorPartNoncashAcquisitionValueofEquityAwardsPaid	12815000	USD
CY2016Q2	form	Minimum Fixed Charge Coverage Ratioin Years Oneand Two MinimumFixedChargeCoverageRatioinYearsOneandTwo	1.50
CY2016Q2	form	Minimum Fixed Charge Coverage Ratioin Year Three MinimumFixedChargeCoverageRatioinYearThree	1.30
CY2017	form	Noncashor Part Noncash Acquisition Valueof Equity Awards Paid NoncashorPartNoncashAcquisitionValueofEquityAwardsPaid	0	USD
CY2017	form	Number Of Benefit Plans NumberOfBenefitPlans	1000	plan
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CY2017Q4	form	Property Plant And Equipment Net Excludes Construction In Progress PropertyPlantAndEquipmentNetExcludesConstructionInProgress	40728000	USD
CY2015	form	Restructuringand Impairment Charges Net RestructuringandImpairmentChargesNet	567000	USD
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CY2017	form	Restructuringand Impairment Charges Net RestructuringandImpairmentChargesNet	810000	USD
CY2017	form	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Asset Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense	31300000	USD
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CY2016Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	2507000	USD
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CY2016Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	1315000	USD
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CY2016Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	30184000	USD
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CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	241943000	USD
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CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-454000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-660000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	495000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	698000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-3781000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	2983000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3740000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	3021000	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	833341000	USD
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CY2015	us-gaap	Adjustment For Amortization AdjustmentForAmortization	13137000	USD
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CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12023000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11625000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	16230000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	266000	USD
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CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	299000	USD
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CY2015	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	18000	USD
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	15000	USD
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-99000	USD
CY2015	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	7000	USD
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CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4906000	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5321000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1000	shares
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	73000	USD
CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	8000	USD
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CY2017Q4	us-gaap	Assets Assets	646574000	USD
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CY2017Q4	us-gaap	Assets Current AssetsCurrent	305854000	USD
CY2016Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	28822000	USD
CY2017Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	51900000	USD
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CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	26193000	USD
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CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	26022000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	7504000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	23009000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	7497000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	22966000	USD
CY2016	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	83500000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	133050000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	75152000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	113940000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	146264000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	101408000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	91184000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	1838000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	72532176	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	71000	USD
CY2016Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	57656000	USD
CY2016Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	96111000	USD
CY2017Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	6026000	USD
CY2015	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	196620000	USD
CY2016Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	43819000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1984000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-8075000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	47674000	USD
CY2016Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	5896000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	83613000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	281199000	USD
CY2017Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	81258000	USD
CY2017Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	82209000	USD
CY2017Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	86105000	USD
CY2017Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	83272000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	332844000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-3000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-2130000	USD
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	198000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1804000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4069000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	267000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1924000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1956000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	72000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	120000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	17000	USD
CY2016Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	139375000	USD
CY2017Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	106250000	USD
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CY2016Q4	us-gaap	Deferred Credits And Other Liabilities Noncurrent DeferredCreditsAndOtherLiabilitiesNoncurrent	4726000	USD
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CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
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CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	66000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	424000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	307000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1199000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	579000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	775000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	272000	USD
CY2015	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-15000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1247000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-729000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-45022000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
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CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-590000	USD
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CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	19096000	USD
CY2016Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	5305000	USD
CY2017Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	4978000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2165000	USD
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CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	128690000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	13863000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	10763000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	393000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	39768000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	18850000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	3310000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	3133000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	118482000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	70457000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	7719000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	3677000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	33486000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	35484000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	6206000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2642000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	10593000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	150581000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	109840000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	246000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	289000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	109000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3703000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3379000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	71000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	66000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1100000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1900000	USD
CY2015	us-gaap	Depreciation Depreciation	10634000	USD
CY2016	us-gaap	Depreciation Depreciation	11371000	USD
CY2017	us-gaap	Depreciation Depreciation	13626000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	0	USD
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CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.57
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CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	14801000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	18141000	USD
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	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.22
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
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CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
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CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-135000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	425000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	2596000	USD
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	114692000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2059000	USD
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CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3583000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	13156000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	23961000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	26031000	USD
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CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	212176000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	126608000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	97484000	USD
CY2015	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P364D
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CY2017Q3	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P91D
CY2017Q4	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P91D
CY2017	us-gaap	Fiscal Period Duration FiscalPeriodDuration	P364D
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CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	252000	USD
CY2016	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-862000	USD
CY2016	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	12400000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	1910000	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	27188000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	30731000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	188010000	USD
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CY2017Q4	us-gaap	Goodwill Goodwill	189920000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	158141000	USD
CY2016	us-gaap	Gross Profit GrossProfit	102682000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	47571000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	61767000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	57630000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	48629000	USD
CY2017	us-gaap	Gross Profit GrossProfit	215597000	USD
CY2016Q4	us-gaap	Impaired Assets To Be Disposed Of By Method Other Than Sale Carrying Value Of Asset ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleCarryingValueOfAsset	1700000	USD
CY2017Q4	us-gaap	Impaired Assets To Be Disposed Of By Method Other Than Sale Carrying Value Of Asset ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleCarryingValueOfAsset	600000	USD
CY2015	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	8000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	77000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	1717000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1009000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-361000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-510000	USD
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CY2015	us-gaap	Gross Profit GrossProfit	85738000	USD
CY2016Q1	us-gaap	Gross Profit GrossProfit	9792000	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	25427000	USD
CY2017	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-3069000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-50947000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	31492000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1798000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	752000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	10714000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1271000	USD
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CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4446000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	42206000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	367000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	907000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1040000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1028000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	1256000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1428000	USD
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1142000	USD
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30000	USD
CY2015	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-66000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	504000	USD
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-43744000	USD
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-43638000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-271000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-445000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-17568000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	14772000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	238000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	2048000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	160000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1293000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1457000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-27120000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-12207000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	16000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-129000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-360000	USD
CY2015	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	0	USD
CY2016	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	0	USD
CY2017	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	1655000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-975000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	951000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1872000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1654000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1979000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	27000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2567000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3172000	USD
CY2016Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1391000	USD
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2242000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2036000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3433000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	741000	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-8261000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6847000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10651000	USD
CY2015	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	19000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-1127000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	62000	USD
CY2015	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-333000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	786000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	810000	USD
CY2015	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-2413000	USD
CY2016	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-283000	USD
CY2017	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-30000	USD
CY2015	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-782000	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-126000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	413000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8167000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	11733000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	15635000	USD
CY2015	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	52000	USD
CY2016	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	126000	USD
CY2017	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	111000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-250000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	248000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-61000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-173000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3292000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-870000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	779000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	248000	USD
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1947000	shares
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	126608000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	97484000	USD
CY2015	us-gaap	Interest Expense InterestExpense	0	USD
CY2016Q1	us-gaap	Interest Expense InterestExpense	0	USD
CY2016Q2	us-gaap	Interest Expense InterestExpense	11000	USD
CY2016Q3	us-gaap	Interest Expense InterestExpense	1125000	USD
	us-gaap	Interest Expense InterestExpense	1255000	USD
CY2016	us-gaap	Interest Expense InterestExpense	2391000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	1174000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	1162000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	1109000	USD
CY2017Q4	us-gaap	Interest Expense InterestExpense	1045000	USD
CY2017	us-gaap	Interest Expense InterestExpense	4491000	USD
CY2015	us-gaap	Interest Paid InterestPaid	0	USD
CY2016	us-gaap	Interest Paid InterestPaid	2110000	USD
CY2017	us-gaap	Interest Paid InterestPaid	3836000	USD
CY2016Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	12014000	USD
CY2017Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	14613000	USD
CY2016Q4	us-gaap	Inventory Net InventoryNet	59806000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	67848000	USD
CY2016Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	27402000	USD
CY2017Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	33101000	USD
CY2016Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	20390000	USD
CY2017Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	20134000	USD
CY2015	us-gaap	Inventory Write Down InventoryWriteDown	6493000	USD
CY2016	us-gaap	Inventory Write Down InventoryWriteDown	6631000	USD
CY2017	us-gaap	Inventory Write Down InventoryWriteDown	9259000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	283000	USD
CY2016Q1	us-gaap	Investment Income Interest InvestmentIncomeInterest	117000	USD
CY2016Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	99000	USD
CY2016Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	52000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	59000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	327000	USD
CY2017Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	67000	USD
CY2017Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	93000	USD
CY2017Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	123000	USD
CY2017Q4	us-gaap	Investment Income Interest InvestmentIncomeInterest	264000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	548000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	217926000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	187937000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	618982000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	646574000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	82707000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	92161000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	138176000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	105671000	USD
CY2016Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	12701000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	18443000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	18750000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1250000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	48750000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	37500000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	125475000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	87228000	USD
CY2017Q4	us-gaap	Marketable Securities MarketableSecurities	48988000	USD
CY2015	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	32324000	USD
CY2016	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-44856000	USD
CY2017	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-10224000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-4792000	USD
CY2016Q2	us-gaap	Operating Expenses OperatingExpenses	32073000	USD
CY2016Q3	us-gaap	Operating Expenses OperatingExpenses	40346000	USD
	us-gaap	Operating Expenses OperatingExpenses	54805000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	143614000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-39470000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	1129000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-206318000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-59673000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	36122000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	17423000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	86323000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-1523000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	-13800000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	36884000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	-14198000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-15443000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-6557000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	5185000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	17577000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	12563000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	5588000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	40913000	USD
CY2015Q4	us-gaap	Noncurrent Assets NoncurrentAssets	80136000	USD
CY2016Q4	us-gaap	Noncurrent Assets NoncurrentAssets	357281000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	334158000	USD
CY2016Q2	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2015	us-gaap	Operating Expenses OperatingExpenses	89841000	USD
CY2016Q1	us-gaap	Operating Expenses OperatingExpenses	23365000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	150589000	USD
CY2017Q2	us-gaap	Operating Expenses OperatingExpenses	40512000	USD
CY2017Q3	us-gaap	Operating Expenses OperatingExpenses	42188000	USD
CY2017Q3	us-gaap	Operating Expenses OperatingExpenses	43364000	USD
CY2017Q4	us-gaap	Operating Expenses OperatingExpenses	43232000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	169296000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	-4103000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-13573000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-6646000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-13158000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-14530000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	-47907000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	7059000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	19579000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	14266000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	5397000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	46301000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	37103000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	6603000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3061000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3984000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4385000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	5735000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	13335000	USD
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	4900000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6500000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	7900000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6342000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	4647000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2600000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2259000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-64000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	29000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-206000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	428000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	364000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-397000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2042000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	6764000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-461000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1518000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6761000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	495000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	203000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-64000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	29000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-206000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2549000	USD
CY2016Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-314000	USD
CY2016Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-302000	USD
CY2016Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	83000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	309000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-224000	USD
CY2017Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	USD
CY2017Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	107000	USD
CY2017Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	311000	USD
CY2017Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-170000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-152000	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	8210000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2016Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	18970000	USD
CY2015	us-gaap	Payments For Restructuring PaymentsForRestructuring	641000	USD
CY2016	us-gaap	Payments For Restructuring PaymentsForRestructuring	5892000	USD
CY2017	us-gaap	Payments For Restructuring PaymentsForRestructuring	731000	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1506000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	6885000	USD
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	66234000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	10587000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	50733000	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	228031000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8640000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11521000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17756000	USD
CY2016Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2016Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2016Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	14276000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	13705000	USD
CY2015	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	53000	USD
CY2016	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	47000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	68000	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	150000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	3418000	USD
CY2016	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	5745000	USD
CY2017	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	19510000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	74750000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	44500000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	8996000	USD
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1200000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	53000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2014Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1592000	USD
CY2015Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1116000	USD
CY2016Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2972000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	3662000	USD
CY2015	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
CY2016	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	795000	USD
CY2017	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
CY2016Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2972000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	3662000	USD
CY2015	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	3012000	USD
CY2016	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	4193000	USD
CY2017	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	7425000	USD
CY2015	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2536000	USD
CY2016	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	5254000	USD
CY2017	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	8115000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	278710000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	296483000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	42663000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	46754000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	25000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	51000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-99000	USD
CY2017Q4	us-gaap	Purchase Obligation PurchaseObligation	40578000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	10625000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	33125000	USD
CY2015	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	44184000	USD
CY2016Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	10849000	USD
CY2016Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	11133000	USD
CY2016Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	17253000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	18218000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	57453000	USD
CY2017Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	17414000	USD
CY2017Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	18542000	USD
CY2017Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	19338000	USD
CY2017Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	18513000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	73807000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	106000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	372000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1082000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1170000	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	559000	USD
CY2016Q1	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2016Q2	us-gaap	Restructuring Charges RestructuringCharges	6910000	USD
CY2016Q3	us-gaap	Restructuring Charges RestructuringCharges	85000	USD
	us-gaap	Restructuring Charges RestructuringCharges	12697000	USD
CY2017Q3	us-gaap	Restructuring Charges RestructuringCharges	44000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	7288000	USD
CY2017Q2	us-gaap	Restructuring Charges RestructuringCharges	269000	USD
CY2017Q3	us-gaap	Restructuring Charges RestructuringCharges	16000	USD
CY2017Q4	us-gaap	Restructuring Charges RestructuringCharges	481000	USD
CY2017Q4	us-gaap	Sales Revenue Net SalesRevenueNet	131901000	USD
CY2017	us-gaap	Sales Revenue Net SalesRevenueNet	548441000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	45090000	USD
CY2016Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	12516000	USD
	us-gaap	Sales Revenue Net SalesRevenueNet	123888000	USD
CY2016	us-gaap	Sales Revenue Net SalesRevenueNet	383881000	USD
CY2017Q2	us-gaap	Sales Revenue Net SalesRevenueNet	128829000	USD
CY2017Q3	us-gaap	Sales Revenue Net SalesRevenueNet	143976000	USD
CY2017Q3	us-gaap	Sales Revenue Net SalesRevenueNet	143735000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	810000	USD
CY2014Q4	us-gaap	Restructuring Reserve RestructuringReserve	584000	USD
CY2015Q4	us-gaap	Restructuring Reserve RestructuringReserve	2000	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	434000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	399000	USD
CY2016Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	3562000	USD
CY2017Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	3158000	USD
CY2015	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	500000	USD
CY2016	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	964000	USD
CY2017	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	114000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-428616000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-387573000	USD
CY2015	us-gaap	Sales Revenue Net SalesRevenueNet	282358000	USD
CY2016Q1	us-gaap	Sales Revenue Net SalesRevenueNet	53611000	USD
CY2016Q2	us-gaap	Sales Revenue Net SalesRevenueNet	83083000	USD
CY2016Q3	us-gaap	Sales Revenue Net SalesRevenueNet	123299000	USD
CY2016Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	14030000	USD
CY2016Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23008000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23890000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	73444000	USD
CY2017Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	22829000	USD
CY2017Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23602000	USD
CY2017Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	24010000	USD
CY2017Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	24238000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	94679000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	12075000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	11686000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	16339000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Offering Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate	0.85
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	8640
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	8200
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13200
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	18118050	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	12441000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	18339000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	22000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	558000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5946000	USD
CY2015	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2016	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	97080000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2015	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3206000	USD
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3741000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	5695000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	6886000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1000	USD
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	2000	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	2000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	209000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2003000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	13837000	USD
CY2017Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	6000000	USD
CY2015	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	8211000	USD
CY2016	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-97079000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-18970000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	289436000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	294681000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	401056000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	458637000	USD
CY2017Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	26000000	USD
CY2015	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	0	USD
CY2016	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	51000	USD
CY2017	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	10000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	16333000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17033000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17978000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	18296000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	18000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	100000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	22000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	67000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	667000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	614000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	694000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	163000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	450000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	112000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	119000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	376000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1000000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57850000	shares
CY2016Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	58431000	shares
CY2016Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	59988000	shares
CY2016Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	70502000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	70807000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	64941000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	72922000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	73539000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	73885000	shares
CY2017Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	74756000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	74239000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	57850000	shares
CY2016Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	58431000	shares
CY2016Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	59572000	shares
CY2016Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	70502000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	70807000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	64941000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	71423000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72200000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72651000	shares
CY2017Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72846000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	72292000	shares
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Concentration of Credit Risk and Other Risks and Uncertainties</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, marketable securities and trade receivables. Our cash equivalents and marketable securities are held in safekeeping by large, credit worthy financial institutions. We invest our excess cash primarily in U.S. banks, government and agency bonds, money market funds and corporate obligations. We have established guidelines relative to credit ratings, diversification and maturities that seek to maintain safety and liquidity. Deposits in these banks may exceed the amounts of insurance provided on such deposits. To date, we have not experienced any losses on our deposits of cash and cash equivalents. We market and sell our products to a narrow base of customers and generally do not require collateral. </font></div></div>
CY2017	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Foreign Exchange Management</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We transact business in various foreign currencies. We enter into forward foreign exchange contracts in an effort to mitigate the risks associated with currency fluctuations on certain foreign currency balance sheet exposures and certain operational costs denominated in local currency impacting our statement of operations. Gains and losses resulting from the impact of currency exchange rate movements on forward foreign exchange contracts designated to offset certain foreign currency balance sheet exposures and certain operational exposures are recognized as Other income (expense), net in the Consolidated Statements of Operations in the period in which the exchange rates change. These gains and losses are intended to partially offset the foreign currency exchange gains and losses on the underlying exposures being hedged. We record the fair value of these contracts as of the end of our reporting period in the Consolidated Balance Sheets. We do not use derivative financial instruments for trading or speculative purposes.</font></div></div>
CY2017	us-gaap	Fiscal Period FiscalPeriod	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Fiscal Year</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our fiscal year ends on the last Saturday in December.</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%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Formation and Nature of Business</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">FormFactor, Inc. was incorporated in Delaware on April 15, 1993 and is headquartered in Livermore, California. We are a leading provider of test and measurement solutions. We provide a broad range of high-performance probe cards, analytical probes, probe stations and thermal sub-systems to both semiconductor companies and scientific institutions. Our products provide electrical information from a variety of semiconductor and electro-optical devices and integrated circuits (devices) from development to production. Customers use our products and services to lower production costs, improve yields, and enable development of complex next generation devices. We believe our technology leadership enables critical roadmap advances for our customers.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On June 24, 2016, we acquired Cascade Microtech, Inc. ("Cascade Microtech") which designs, develops, manufactures and markets advanced wafer probing, thermal and reliability solutions for the electrical measurement and testing of high performance semiconductor devices. Design, development and manufacturing operations are located in Beaverton, Oregon, United States and Munich and Thiendorf, Germany, and sales, service and support operations are located in the United States, Germany, Japan, Taiwan, China, and Singapore. The acquisition of Cascade Microtech transforms our business into a broader test and measurement market leader with significant scale and increased diversification and demand for the combined company’s products and technologies.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Fiscal Year</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our fiscal year ends on the last Saturday in December. The fiscal years ended on </font><font style="font-family:inherit;font-size:10pt;">December 30, 2017</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">December 31, 2016</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">December 26, 2015</font><font style="font-family:inherit;font-size:10pt;"> consisted of 52 weeks, 53 weeks and 52 weeks, respectively. The first </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> fiscal quarters in our fiscal year ended </font><font style="font-family:inherit;font-size:10pt;">December 31, 2016</font><font style="font-family:inherit;font-size:10pt;"> contained </font><font style="font-family:inherit;font-size:10pt;">13</font><font style="font-family:inherit;font-size:10pt;"> weeks, and the </font><font style="font-family:inherit;font-size:10pt;">fourth</font><font style="font-family:inherit;font-size:10pt;"> fiscal quarter contained </font><font style="font-family:inherit;font-size:10pt;">14</font><font style="font-family:inherit;font-size:10pt;"> weeks.</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%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Estimates may change as new information is obtained. </font></div></div>

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2017 Q4 Form 10-K Financial Statement

#000103939918000014 Filed on February 27, 2018

Income Statement

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$FORM FORMFACTOR INC Stock $form

2017 Q4 Form 10-K Financial Statement

#000103939918000014 Filed on February 27, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FORM
FORMFACTOR INC Stock $form