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Goodwill and Other Intangible Assets - Goodwill (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Line Items]      
Goodwill reallocation due to Knowles separation $ 19,749dov_GoodwillReallocationDuetoKnowlesSeparationandBusinessRealignment    
Goodwill allocated to discontinued operations 152,663dov_GoodwillAllocatedToDiscontinuedOperations    
Goodwill [Roll Forward]      
Goodwill, Gross     3,067,871us-gaap_GoodwillGross
Accumulated impairment loss     (70,561)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Balance 3,108,580us-gaap_Goodwill 2,997,310us-gaap_Goodwill  
Acquisitions 432,138us-gaap_GoodwillAcquiredDuringPeriod 141,888us-gaap_GoodwillAcquiredDuringPeriod  
Purchase price adjustments 10,955us-gaap_GoodwillPurchaseAccountingAdjustments (28,138)us-gaap_GoodwillPurchaseAccountingAdjustments  
Foreign currency translation (60,116)us-gaap_GoodwillTranslationAdjustments (2,480)us-gaap_GoodwillTranslationAdjustments  
Balance 3,491,557us-gaap_Goodwill 3,108,580us-gaap_Goodwill  
Energy Segment [Member]      
Goodwill [Roll Forward]      
Goodwill, Gross     716,210us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
Accumulated impairment loss     0us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
Balance 727,972us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
716,210us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
 
Acquisitions 325,438us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
19,810us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
 
Purchase price adjustments (395)us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
(2,278)us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
 
Foreign currency translation (4,280)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
(5,770)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
 
Balance 1,048,735us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
727,972us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EnergySegmentMember
 
Engineered Systems Segment [Member]      
Goodwill [Roll Forward]      
Goodwill, Gross     1,202,906us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
Accumulated impairment loss     (10,591)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
Balance 1,210,619us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
1,192,315us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
 
Acquisitions 80,581us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
19,968us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
 
Purchase price adjustments 0us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
(521)us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
 
Foreign currency translation (21,022)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
(1,143)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
 
Balance 1,270,178us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
1,210,619us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_EngineeredSystemsSegmentMember
 
Fluids Segment [Member]      
Goodwill [Roll Forward]      
Goodwill, Gross     560,131us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
Accumulated impairment loss     (59,970)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
Balance 604,158us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
500,161us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
 
Acquisitions 25,097us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
102,110us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
 
Purchase price adjustments 11,350us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
(2,417)us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
 
Foreign currency translation (30,942)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
4,304us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
 
Balance 609,663us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
604,158us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_FluidsSegmentMember
 
Refrigeration and Food Equipment Segment [Member]      
Goodwill [Roll Forward]      
Goodwill, Gross     588,624us-gaap_GoodwillGross
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
Accumulated impairment loss     0us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
Balance 565,831us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
588,624us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
 
Acquisitions 1,022us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
 
Purchase price adjustments 0us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
(22,922)us-gaap_GoodwillPurchaseAccountingAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
 
Foreign currency translation (3,872)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
129us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
 
Balance $ 562,981us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember
$ 565,831us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= dov_RefrigerationandFoodEquipmentSegmentMember