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Business Combinations (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 1 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Apr. 30, 2015
Investment in businesses $ 800us-gaap_BusinessCombinationConsiderationTransferred1 $ 2,645us-gaap_BusinessCombinationConsiderationTransferred1  
Liabilities assumed 0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities 10us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities  
Debt issued 300us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred 457us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred  
Subsequent Event [Member]      
Investment in businesses     1,644us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Liabilities assumed     0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Debt issued     $ 600us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember