Segment Information (Net Sales Operating Income and Income Before Taxes for Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified
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3 Months Ended |
Mar. 28, 2015
|
Mar. 29, 2014
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Segment Reporting Information [Line Items] |
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Net sales |
$ 585,394us-gaap_SalesRevenueNet |
$ 583,221us-gaap_SalesRevenueNet |
Operating income |
111,698us-gaap_OperatingIncomeLoss |
120,369us-gaap_OperatingIncomeLoss |
Income (loss) before taxes |
76,196us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
142,467us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
Outdoor |
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Segment Reporting Information [Line Items] |
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Net sales |
75,915us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_OutdoorMember |
83,985us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_OutdoorMember |
Operating income |
23,834us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_OutdoorMember |
23,683us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_OutdoorMember |
Income (loss) before taxes |
21,777us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_OutdoorMember |
28,103us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_OutdoorMember |
Fitness |
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Segment Reporting Information [Line Items] |
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Net sales |
130,994us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_FitnessMember |
100,288us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_FitnessMember |
Operating income |
34,638us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_FitnessMember |
33,512us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_FitnessMember |
Income (loss) before taxes |
28,349us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_FitnessMember |
37,522us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_FitnessMember |
Marine |
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Segment Reporting Information [Line Items] |
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Net sales |
64,297us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_MarineSystemsMember |
60,002us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_MarineSystemsMember |
Operating income |
4,566us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_MarineSystemsMember |
3,810us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_MarineSystemsMember |
Income (loss) before taxes |
2,711us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_MarineSystemsMember |
6,645us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_MarineSystemsMember |
Auto/Mobile |
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Segment Reporting Information [Line Items] |
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Net sales |
216,126us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_AutomotiveMobileMember |
242,952us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_AutomotiveMobileMember |
Operating income |
22,480us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_AutomotiveMobileMember |
30,564us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_AutomotiveMobileMember |
Income (loss) before taxes |
(453)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_AutomotiveMobileMember |
40,148us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_AutomotiveMobileMember |
Aviation |
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Segment Reporting Information [Line Items] |
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Net sales |
98,062us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_AviationMember |
95,994us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = grmn_AviationMember |
Operating income |
26,180us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_AviationMember |
28,800us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = grmn_AviationMember |
Income (loss) before taxes |
$ 23,812us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_AviationMember |
$ 30,049us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = grmn_AviationMember |