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Subsequent Event - Additional Information (Detail) (USD $)
 12 Months Ended 0 Months Ended
Dec. 31, 2014
Feb. 05, 2015
Subsequent Event [Line Items]    
Business acquisition, cash $ 1,150,000us-gaap_PaymentsToAcquireBusinessesGross  
Subsequent Event | ARAS    
Subsequent Event [Line Items]    
Business acquisition, cash   7,700,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= faro_ArasMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Business acquisition, contingent consideration   $ 4,000,000us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred
/ us-gaap_BusinessAcquisitionAxis
= faro_ArasMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Earn out period for contingent consideration   2 years