$SLAB
Silicon Laboratories Inc Stock $slab

$slab Overview Financials Valuation SEC Filings Company Website

2014 Q1 Form 10-K Financial Statement

#000104746914000500 Filed on January 31, 2014

Income Statement

Concept	2014 Q1	2013 Q4	2013
Revenue	$145.7M	$146.2M	$580.1M
YoY Change	0.22%	-4.13%	2.98%
Cost Of Revenue	$58.59M	$57.60M	$227.2M
YoY Change	1.01%	-2.04%	0.85%
Gross Profit	$87.11M	$88.60M	$352.9M
YoY Change	-0.31%	-5.34%	4.4%
Gross Profit Margin	59.79%	60.6%	60.84%
Selling, General & Admin	$34.61M	$32.30M	$130.8M
YoY Change	18.72%	0.0%	14.34%
% of Gross Profit	39.73%	36.46%	37.06%
Research & Development	$42.49M	$42.20M	$157.8M
YoY Change	13.05%	17.22%	14.39%
% of Gross Profit	48.77%	47.63%	44.71%
Depreciation & Amortization	$3.290M	$8.200M	$13.49M
YoY Change	-0.21%	24.24%	-0.95%
% of Gross Profit	3.78%	9.26%	3.82%
Operating Expenses	$77.10M	$74.50M	$288.6M
YoY Change	15.53%	8.92%	14.37%
Operating Profit	$10.01M	$14.10M	$64.31M
YoY Change	-51.5%	-44.05%	-24.94%
Interest Expense	$798.0K	-$600.0K	$3.293M
YoY Change	-5.23%	0.0%	186.6%
% of Operating Profit	7.97%	-4.26%	5.12%
Other Income/Expense, Net	$67.00K	$100.0K	$157.0K
YoY Change	-228.85%	-133.33%	-67.56%
Pretax Income	$9.600M	$13.70M	$41.85M
YoY Change	-52.19%	-43.85%	-48.01%
Income Tax	$1.470M	$3.100M	$12.21M
% Of Pretax Income	15.31%	22.63%	29.17%
Net Earnings	$8.100M	$10.60M	$49.80M
YoY Change	-59.5%	-43.32%	-21.57%
Net Earnings / Revenue	5.56%	7.25%	8.58%
Basic Earnings Per Share	$0.19		$1.17
Diluted Earnings Per Share	$0.18	$242.0K	$1.14
COMMON SHARES
Basic Shares Outstanding	42.83M shares	43.12M shares	42.72M shares
Diluted Shares Outstanding	44.06M shares		43.54M shares

Balance Sheet

Concept	2014 Q1	2013 Q4	2013
SHORT-TERM ASSETS
Cash & Short-Term Investments	$323.1M	$275.4M	$275.4M
YoY Change	4.53%	-2.34%	-2.34%
Cash & Equivalents	$128.3M	$95.80M
Short-Term Investments	$286.0M	$229.8M	$229.8M
Other Short-Term Assets	$55.40M	$15.81M	$66.50M
YoY Change	-13.3%	-21.63%	14.46%
Inventory	$44.33M	$45.27M	$45.30M
Prepaid Expenses
Receivables	$64.67M	$72.12M	$72.10M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$487.5M	$459.3M	$459.3M
YoY Change	-3.02%	-1.79%	-1.8%
LONG-TERM ASSETS
Property, Plant & Equipment	$130.8M	$132.4M	$132.4M
YoY Change	-3.63%	-2.09%	-2.14%
Goodwill	$228.8M	$228.8M
YoY Change	75.63%	75.63%
Intangibles	$128.5M	$131.6M
YoY Change	46.12%	45.01%
Long-Term Investments	$11.00M	$10.60M	$10.60M
YoY Change	-1.79%	-7.02%	-7.02%
Other Assets	$23.48M	$28.38M	$28.40M
YoY Change	-18.46%	-22.51%	-22.4%
Total Long-Term Assets	$522.5M	$531.8M	$531.9M
YoY Change	32.65%	31.55%	31.56%
TOTAL ASSETS
Total Short-Term Assets	$487.5M	$459.3M	$459.3M
Total Long-Term Assets	$522.5M	$531.8M	$531.9M
Total Assets	$1.010B	$991.2M	$991.2M
YoY Change	12.65%	13.67%	13.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$22.71M	$22.13M	$22.10M
YoY Change	-27.4%	-25.31%	-25.34%
Accrued Expenses	$67.75M	$45.98M	$24.90M
YoY Change	83.66%	13.77%	-38.37%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$8.750M	$7.500M	$7.500M
YoY Change	75.0%	50.0%	50.0%
Total Short-Term Liabilities	$133.1M	$109.1M	$109.1M
YoY Change	28.24%	2.6%	2.54%
LONG-TERM LIABILITIES
Long-Term Debt	$85.00M	$87.50M	$87.50M
YoY Change	-8.11%	-7.89%	-7.89%
Other Long-Term Liabilities	$30.70M	$11.74M	$55.90M
YoY Change	58.25%	33.14%	171.36%
Total Long-Term Liabilities	$85.00M	$99.24M	$143.4M
YoY Change	-8.11%	-4.41%	24.05%
TOTAL LIABILITIES
Total Short-Term Liabilities	$133.1M	$109.1M	$109.1M
Total Long-Term Liabilities	$85.00M	$99.24M	$143.4M
Total Liabilities	$248.9M	$252.6M	$252.6M
YoY Change	15.36%	13.78%	13.78%
SHAREHOLDERS EQUITY
Retained Earnings	$698.7M	$690.6M
YoY Change	5.73%	7.77%
Common Stock	$62.89M	$48.63M
YoY Change	200.06%	380.29%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$761.2M	$738.6M	$738.6M
YoY Change
Total Liabilities & Shareholders Equity	$1.010B	$991.2M	$991.2M
YoY Change	12.65%	13.67%	13.67%

Cashflow Statement

Concept	2014 Q1	2013 Q4	2013
OPERATING ACTIVITIES
Net Income	$8.100M	$10.60M	$49.80M
YoY Change	-59.5%	-43.32%	-21.57%
Depreciation, Depletion And Amortization	$3.290M	$8.200M	$13.49M
YoY Change	-0.21%	24.24%	-0.95%
Cash From Operating Activities	$47.00M	$25.00M	$120.2M
YoY Change	59.32%	95.31%	23.79%
INVESTING ACTIVITIES
Capital Expenditures	$1.673M	-$1.500M	$10.47M
YoY Change	-57.08%	-34.78%	-89.74%
Acquisitions			$86.44M
YoY Change			20.3%
Other Investing Activities	-$17.20M	-$28.10M	-$95.40M
YoY Change	-68.38%	-7.87%	155.76%
Cash From Investing Activities	-$18.90M	-$29.60M	-$105.9M
YoY Change	-67.58%	-9.48%	-23.98%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$5.496M		$10.72M
YoY Change	11.82%		-77.13%
Debt Paid & Issued, Net	$1.250M		$13.43M
YoY Change	-50.0%
Cash From Financing Activities	4.500M	-16.10M	-23.90M
YoY Change	73.08%	16000.0%	-145.35%
NET CHANGE
Cash From Operating Activities	47.00M	25.00M	120.2M
Cash From Investing Activities	-18.90M	-29.60M	-105.9M
Cash From Financing Activities	4.500M	-16.10M	-23.90M
Net Change In Cash	32.60M	-20.70M	-9.600M
YoY Change	-224.43%	3.5%	-191.43%
FREE CASH FLOW
Cash From Operating Activities	$47.00M	$25.00M	$120.2M
Capital Expenditures	$1.673M	-$1.500M	$10.47M
Free Cash Flow	$45.33M	$26.50M	$109.7M
YoY Change	77.04%	75.5%	-2319.87%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012	slab	Length Of Fiscal Year LengthOfFiscalYear	P364D
CY2013	slab	Length Of Fiscal Year LengthOfFiscalYear	P364D
CY2012	us-gaap	Advertising Expense AdvertisingExpense	1700000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	1600000	USD
CY2013	us-gaap	Advertising Expense AdvertisingExpense	2000000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"><font size="2"><i>Use of Estimates</i></font></p> <p style="FONT-FAMILY: times;"><font size="2">        The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Among the significant estimates affecting the financial statements are those related to inventories, stock-based compensation, investments in auction-rate securities, acquired intangible assets, goodwill, long-lived assets and income taxes. Actual results could differ from those estimates, and such differences could be material to the financial statements.</font></p> </div>
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	63548000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	35472000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	49819000	USD
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	43421000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42136000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42715000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	970000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1411000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	822000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44832000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	43106000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	43537000	shares
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.51
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
CY2012Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	105426000	USD
CY2013Q4	us-gaap	Cash Cash	45544000	USD
CY2013Q4	slab	Cash Fair Value Disclosure CashFairValueDisclosure	45544000	USD
CY2013Q4	slab	Cash And Cash Equivalents Adjusted Cost CashAndCashEquivalentsAdjustedCost	95800000	USD
CY2013Q4	slab	Auction Rate Securities Guaranteed By Us Government AuctionRateSecuritiesGuaranteedByUSGovernment	10400000	USD
CY2013Q4	slab	Auction Rate Securities Privately Insured AuctionRateSecuritiesPrivatelyInsured	2000000	USD
CY2013Q4	slab	Auction Rate Securities Having Credit Rating Aa AuctionRateSecuritiesHavingCreditRatingAA	6000000	USD
CY2013Q4	slab	Auction Rate Securities Having Credit Rating A AuctionRateSecuritiesHavingCreditRatingA	2000000	USD
CY2013Q4	slab	Auction Rate Securities Having Credit Rating Bbb AuctionRateSecuritiesHavingCreditRatingBBB	4400000	USD
CY2012Q4	us-gaap	Cash Cash	56690000	USD
CY2012Q4	slab	Cash Fair Value Disclosure CashFairValueDisclosure	56690000	USD
CY2012Q4	slab	Cash And Cash Equivalents Adjusted Cost CashAndCashEquivalentsAdjustedCost	105424000	USD
CY2012Q4	slab	Cash And Cash Equivalents Gross Unrealized Gains CashAndCashEquivalentsGrossUnrealizedGains	2000	USD
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	500000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	400000	shares
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	400000	shares
CY2013Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	95800000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	26695000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	13684000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	11369000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	38064000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	10632000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	24316000	USD
CY2012Q4	slab	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments	12000	USD
CY2012Q4	slab	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments	1156000	USD
CY2012Q4	slab	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments	1168000	USD
CY2013Q4	slab	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments	15000	USD
CY2013Q4	slab	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments	1793000	USD
CY2013Q4	slab	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments	1808000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	115109000	USD
CY2013Q4	slab	Available For Sale Securities Debt Maturities After One Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTenYearsAmortizedCost	80987000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	45950000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	242046000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	115177000	USD
CY2013Q4	slab	Available For Sale Securities Debt Maturities After One Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTenYearsFairValue	81147000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	44157000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	240481000	USD
CY2013	us-gaap	Derivative Description Of Variable Rate Basis DerivativeDescriptionOfVariableRateBasis	LIBOR
CY2013	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0	USD
CY2012	slab	Notional Amount Of Interest Rate Cash Flow Hedge Derivatives Matured During Period NotionalAmountOfInterestRateCashFlowHedgeDerivativesMaturedDuringPeriod	50100000	USD
CY2012	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	900000	USD
CY2013Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	-500000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	8821000	USD
CY2012Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	20615000	USD
CY2013Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	11268000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	11744000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	42103000	USD
CY2012Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	7476000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	49579000	USD
CY2013Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	34503000	USD
CY2013Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	10768000	USD
CY2013Q4	us-gaap	Inventory Net InventoryNet	45271000	USD
CY2012Q4	slab	Distributor Advances DistributorAdvances	21260000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	20177000	USD
CY2013Q4	slab	Distributor Advances DistributorAdvances	31839000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	15812000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	41437000	USD
CY2013Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	47651000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	200969000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	205968000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	65698000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	73523000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	135271000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	132445000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	22298000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	18112000	USD
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	24896000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	21079000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	40410000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	45975000	USD
CY2012Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	11794000	USD
CY2013Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	55941000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-273000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	115489000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	228781000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	130265000	USD
CY2013	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	98516000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	14776000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	158050000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	107430000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	45057000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	31490000	USD
CY2013Q4	slab	Intangible Assets Fully Amortized Gross Excluding Goodwill IntangibleAssetsFullyAmortizedGrossExcludingGoodwill	1000000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14600000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10700000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9900000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	17060000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	16669000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	16019000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	15052000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	14309000	USD
CY2013	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1600000	shares
CY2013	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	500000	shares
CY2011	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1454000	USD
CY2013	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	700000	shares
CY2012	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	1700000	shares
CY2011	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	3200000	shares
CY2013	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	26022000	USD
CY2012	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	62019000	USD
CY2011	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	110063000	USD
CY2011Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3648000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2467000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-946000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-684000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1181000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1521000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	262000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	49000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-213000	USD
CY2012	slab	Employee Service Share Based Compensation Net Reduction In Selling General And Administrative Expense EmployeeServiceShareBasedCompensationNetReductionInSellingGeneralAndAdministrativeExpense	1900000	USD
CY2012	slab	Income Tax Reconciliation Nondeductible Expense Acquisition Costs IncomeTaxReconciliationNondeductibleExpenseAcquisitionCosts	0.001	pure
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	80494000	USD
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	51200000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M6D
CY2013	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	15300000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	30800000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31176000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	36115000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2633000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4911000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3957000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	28167000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	26265000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	32158000	USD
CY2013Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	6641000	shares
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3000000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2900000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2700000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4200000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4400000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4500000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	4232000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3704000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3058000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	2350000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1449000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	682000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	15475000	USD
CY2013	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	1500000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4796000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	21084000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14468000	USD
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4093000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-3009000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2845000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8889000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	18075000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17313000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5591000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5444000	USD
CY2013	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2272000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-719000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-375000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-70000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3319000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4725000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-445000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12208000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22800000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16868000	USD
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.082	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.118	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.110	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.146	pure
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	48282000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	5854000	USD
CY2013	slab	Effective Income Tax Rate Reconciliation Excess Officer Compensation EffectiveIncomeTaxRateReconciliationExcessOfficerCompensation	0.019	pure
CY2013	slab	Income Tax Reconciliation Nondeductible Expense Acquisition Costs IncomeTaxReconciliationNondeductibleExpenseAcquisitionCosts	0.002	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.016	pure
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.197	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.005	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.084	pure
CY2012	slab	Effective Income Tax Rate Reconciliation Intercompany Technology License EffectiveIncomeTaxRateReconciliationIntercompanyTechnologyLicense	0.118	pure
CY2012	slab	Effective Income Tax Rate Reconciliation Excess Officer Compensation EffectiveIncomeTaxRateReconciliationExcessOfficerCompensation	0.010	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008	pure
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.264	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.085	pure
CY2011	slab	Effective Income Tax Rate Reconciliation Intercompany Technology License EffectiveIncomeTaxRateReconciliationIntercompanyTechnologyLicense	0.104	pure
CY2011	slab	Effective Income Tax Rate Reconciliation Excess Officer Compensation EffectiveIncomeTaxRateReconciliationExcessOfficerCompensation	0.032	pure
CY2011	slab	Income Tax Reconciliation Nondeductible Expense Acquisition Costs IncomeTaxReconciliationNondeductibleExpenseAcquisitionCosts	0.029	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.002	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.322	pure
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	4058000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	35847000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	40281000	USD
CY2013	slab	Undistributed Earnings From Foreign Subsidiaries UndistributedEarningsFromForeignSubsidiaries	292300000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	38399000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	9276000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	6757000	USD
CY2013Q4	slab	Deferred Tax Assets Capitalized Research And Development DeferredTaxAssetsCapitalizedResearchAndDevelopment	8999000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	5733000	USD
CY2013Q4	slab	Deferred Tax Assets Accrued Liabilities And Other DeferredTaxAssetsAccruedLiabilitiesAndOther	8302000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	77466000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3775000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	73691000	USD
CY2012Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	31176000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	8447000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	8133000	USD
CY2012Q4	slab	Deferred Tax Assets Capitalized Research And Development DeferredTaxAssetsCapitalizedResearchAndDevelopment	9708000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3933000	USD
CY2012Q4	slab	Deferred Tax Assets Accrued Liabilities And Other DeferredTaxAssetsAccruedLiabilitiesAndOther	7503000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	73571000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2114000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	71457000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	28653000	USD
CY2012Q4	slab	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	1076000	USD
CY2012Q4	slab	Deferred Tax Liabilities Prepaid Expenses And Other DeferredTaxLiabilitiesPrepaidExpensesAndOther	1447000	USD
CY2011Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10789000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10943000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4364000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4998000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	316000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1818000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	757000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	8397000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	603000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	9900000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	4100000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	38444000	USD
CY2013Q4	slab	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	2022000	USD
CY2013Q4	slab	Deferred Tax Liabilities Prepaid Expenses And Other DeferredTaxLiabilitiesPrepaidExpensesAndOther	1889000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	42355000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	31336000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	4800000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-187000	USD
CY2013Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	1500000	USD
CY2013	us-gaap	Sales Revenue Net SalesRevenueNet	580087000	USD
CY2012	us-gaap	Sales Revenue Net SalesRevenueNet	563294000	USD
CY2011	us-gaap	Sales Revenue Net SalesRevenueNet	491625000	USD
CY2013	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2013	dei	Entity Registrant Name EntityRegistrantName	SILICON LABORATORIES INC
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0001038074
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-28
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-28
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	105426000	USD
CY2012Q4	us-gaap	Short Term Investments ShortTermInvestments	176565000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	78023000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	16652000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	467682000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	11369000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	90750000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	36629000	USD
CY2012Q4	us-gaap	Assets Assets	871966000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	459317000	USD
CY2013Q4	us-gaap	Assets Assets	991150000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	29622000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	5000000	USD
CY2012Q4	slab	Deferred Income On Shipments To Distributors Current DeferredIncomeOnShipmentsToDistributorsCurrent	30259000	USD
CY2012Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1087000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	106378000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	95000000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	221993000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	109147000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	252588000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	4000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	10122000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	640793000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	649973000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	871966000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	738562000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	991150000	USD
CY2011	us-gaap	Cost Of Goods Sold CostOfGoodsSold	193179000	USD
CY2011	us-gaap	Gross Profit GrossProfit	298446000	USD
CY2011	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	135953000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	112419000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	248372000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	50074000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	1859000	USD
CY2011	us-gaap	Interest Expense InterestExpense	37000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	444000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	52340000	USD
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	225277000	USD
CY2012	us-gaap	Gross Profit GrossProfit	338017000	USD
CY2012	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	137952000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	114390000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	252342000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	85675000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	1338000	USD
CY2012	us-gaap	Interest Expense InterestExpense	1149000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	484000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	86348000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	62027000	USD
CY2013	us-gaap	Gross Profit GrossProfit	352904000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	4000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	232000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-424000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-2237000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	1817000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	636000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	36653000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-956000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-2295000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	2339000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	818000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65069000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	404000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	50081000	USD
CY2011	us-gaap	Depreciation Depreciation	13570000	USD
CY2011	slab	Amortization Of Intangibles And Other Assets AmortizationOfIntangiblesAndOtherAssets	11030000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	36115000	USD
CY2011	slab	Tax Benefit Detriment From Share Based Compensation TaxBenefitDetrimentFromShareBasedCompensation	-2814000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	2404000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8562000	USD
CY2011	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1322000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5334000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5948000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2176000	USD
CY2011	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-1320000	USD
CY2011	slab	Increase Decrease In Deferred Income On Shipments To Distributors IncreaseDecreaseInDeferredIncomeOnShipmentsToDistributors	-1915000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5855000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	88742000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	120150000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	178676000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	193474000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8690000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	4018000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	27262000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-25172000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-105911000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	7660000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2404000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	110063000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	7174000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-107173000	USD
CY2011	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-43603000	USD
CY2011	us-gaap	Interest Paid InterestPaid	35000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8241000	USD
CY2012	us-gaap	Depreciation Depreciation	13621000	USD
CY2012	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	8457000	USD
CY2012	slab	Amortization Of Intangibles And Other Assets AmortizationOfIntangiblesAndOtherAssets	14154000	USD
CY2012	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	708000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	31176000	USD
CY2012	slab	Tax Benefit Detriment From Share Based Compensation TaxBenefitDetrimentFromShareBasedCompensation	-1827000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	1294000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	20743000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	13056000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-10629000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7217000	USD
CY2012	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-3812000	USD
CY2012	slab	Increase Decrease In Deferred Income On Shipments To Distributors IncreaseDecreaseInDeferredIncomeOnShipmentsToDistributors	4623000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-7816000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	97050000	USD
CY2011Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138567000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	192450000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	235517000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	102043000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	8508000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	71852000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-139336000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	15148000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1294000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	62019000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	98325000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	52748000	USD
CY2012	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	10462000	USD
CY2012	us-gaap	Interest Paid InterestPaid	677000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	23564000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-23865000	USD
CY2013	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-9626000	USD
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	42779000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	41879000	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	41879000	shares
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	94964000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	95800000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	797000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	670000	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	42779000	shares
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	598939000	USD
CY2011Q1	us-gaap	Stockholders Equity StockholdersEquity	625430000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7660000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	15148000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	15301000	USD
CY2013	us-gaap	Depreciation Depreciation	13491000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	36552000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	31161000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	30753000	USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	214000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-196000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	142000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	350000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-335000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-803000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-148000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-783000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	41849000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	20178000	USD
CY2013	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P9Y
CY2013Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	176650000	USD
CY2012Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	122240000	USD
CY2013Q4	slab	Business Acquisition Purchase Price Allocation Gross Intangible Assets BusinessAcquisitionPurchasePriceAllocationGrossIntangibleAssets	55400000	USD
CY2013	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"><font size="2"><b>1. Description of Business</b></font></p> <p style="FONT-FAMILY: times;"><font size="2">        Silicon Laboratories Inc. (the "Company"), a Delaware corporation, develops and markets mixed-signal analog intensive integrated circuits (ICs) for a broad range of applications for global markets. Within the semiconductor industry, the Company is known as a "fabless" company meaning that the ICs are manufactured by third-party foundry semiconductor companies.</font></p> </div>
CY2013	us-gaap	Operating Expenses OperatingExpenses	288594000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	64310000	USD
CY2013Q4	slab	Interest Rate On Unsettled Balances Due Upon Demand InterestRateOnUnsettledBalancesDueUponDemand	0.00	pure
CY2013	slab	Provision For Undistributed Earnings From Foreign Subsidiaries ProvisionForUndistributedEarningsFromForeignSubsidiaries	0	USD
CY2013	slab	Number Of Product Categories NumberOfProductCategories	3	product
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2013Q4	us-gaap	Short Term Investments ShortTermInvestments	179593000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	72124000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	18878000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	10632000	USD
CY2013Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	131593000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	28382000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	22126000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	7500000	USD
CY2013Q4	slab	Deferred Income On Shipments To Distributors Current DeferredIncomeOnShipmentsToDistributorsCurrent	30853000	USD
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	2693000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	87500000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	4000	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	48630000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	29000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	690612000	USD
CY2013	us-gaap	Cost Of Goods Sold CostOfGoodsSold	227183000	USD
CY2013	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	157799000	USD
CY2013	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	130795000	USD
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	853000	USD
CY2013	us-gaap	Interest Expense InterestExpense	3293000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	157000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-535000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	611000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-560000	USD
CY2013	slab	Amortization Of Intangibles And Other Assets AmortizationOfIntangiblesAndOtherAssets	15911000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	30800000	USD
CY2013	slab	Tax Benefit Detriment From Share Based Compensation TaxBenefitDetrimentFromShareBasedCompensation	606000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	290000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-8972000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5588000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2514000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3979000	USD
CY2013	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-3169000	USD
CY2013	slab	Increase Decrease In Deferred Income On Shipments To Distributors IncreaseDecreaseInDeferredIncomeOnShipmentsToDistributors	-2381000	USD
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5189000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	213883000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	210824000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10472000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	5939000	USD
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	86441000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	15301000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	290000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	26022000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	13434000	USD
CY2013	us-gaap	Interest Paid InterestPaid	2925000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3838000	USD
CY2012	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1492000	USD
CY2013	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	19248000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"><font size="2"><i>Reclassifications</i></font></p> <p style="FONT-FAMILY: times;"><font size="2">        Certain reclassifications have been made to prior year financial statements to conform to current year presentation.</font></p> </div>
CY2013Q4	slab	Business Combination Contingent Consideration Escrow BusinessCombinationContingentConsiderationEscrow	20010000	USD
CY2013Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	12919000	USD
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.038	pure
CY2013Q4	slab	State Loss And Research And Development Tax Credit Valuation Allowance StateLossAndResearchAndDevelopmentTaxCreditValuationAllowance	1700000	USD
CY2013	slab	State Loss And Research And Development Tax Credit Valuation Allowance Increase Decrease Due To Expiration Of State Net Operating Loss Carryforwards StateLossAndResearchAndDevelopmentTaxCreditValuationAllowanceIncreaseDecreaseDueToExpirationOfStateNetOperatingLossCarryforwards	400000	USD
CY2013	slab	State Loss And Research And Development Tax Credit Valuation Allowance Increase Decrease Due To Adjustment Of Certain Acquired State Net Operating Losses And Research And Development Tax Credit Carryforwards StateLossAndResearchAndDevelopmentTaxCreditValuationAllowanceIncreaseDecreaseDueToAdjustmentOfCertainAcquiredStateNetOperatingLossesAndResearchAndDevelopmentTaxCreditCarryforwards	200000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	318000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	600000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	81000	USD

Files In Submission

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slab-20131228_pre.xml	Edgar Link	unprocessable

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$SLAB
Silicon Laboratories Inc Stock $slab

2014 Q1 Form 10-K Financial Statement

#000104746914000500 Filed on January 31, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SLAB Silicon Laboratories Inc Stock $slab

2014 Q1 Form 10-K Financial Statement

#000104746914000500 Filed on January 31, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SLAB
Silicon Laboratories Inc Stock $slab