XML 31 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2020
Apr. 24, 2020
Document and Entity Information    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2020  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Entity Registrant Name MYR GROUP INC.  
Entity Central Index Key 0000700923  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Trading Symbol MYRG  
Title of 12(b) Security Common Stock, $0.01 par value  
Entity Interactive Data Current Yes  
Entity Common Stock, Shares Outstanding   16,685,801
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Current Reporting Status Yes  
Entity Shell Company false